| | Quadratum auctum, p. 320, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 321, by Englebretsen, George | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | Quadratum auctum, p. 321, by Englebretsen, George | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | Quadratum auctum, p. 321, by Englebretsen, George | 1984 | A Single PCD | 2 | Digon |
| | Quadratum auctum, p. 322, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 322, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 322, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 323, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 323, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Quadratum auctum, p. 324, by Englebretsen, George | 1984 | Non-Sigma | | Hexagon |
| | Quadratum auctum, p. 324, by Englebretsen, George | 1984 | Non-Sigma | 5 | Hexagon |
| | Apuleius and the Square of Opposition, p. 168, by Londey, David; Johanson, Carmen | 1984 | Classical Sigma-2 | 3 | Square |
| | An Examination of Aristotelian Modality, p. 76, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 90, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 91, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 91, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 95, by Munshi, Salma | 1984 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | An Examination of Aristotelian Modality, p. 100, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 101, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 105, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 105, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |
| | An Examination of Aristotelian Modality, p. 107, by Munshi, Salma | 1984 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | An Examination of Aristotelian Modality, p. 108, by Munshi, Salma | 1984 | Jacoby-Sesmat-Blanché Sigma-3 | 3 | Hexagon |
| | An Examination of Aristotelian Modality, p. 109, by Munshi, Salma | 1984 | Buridan Sigma-4 | 6 | Octagon |
| | An Examination of Aristotelian Modality, p. 112, by Munshi, Salma | 1984 | Classical Sigma-2 | 3 | Rectangle |