APA (7th ed.) Citation

Heytesbury, W., & Spade, P. V. (1979). On "insoluble" sentences: Chapter one of his Rules for solving sophisms. Pontifical Institute of Mediaeval Studies.

Chicago Style (17th ed.) Citation

Heytesbury, William, and Paul Vincent Spade. On "Insoluble" Sentences: Chapter One of His Rules for Solving Sophisms. Toronto: Pontifical Institute of Mediaeval Studies, 1979.

MLA (9th ed.) Citation

Heytesbury, William, and Paul Vincent Spade. On "Insoluble" Sentences: Chapter One of His Rules for Solving Sophisms. Pontifical Institute of Mediaeval Studies, 1979.