Cita APA (7a ed.)

Guilelmus, H., & Spade, P. V. (1979). On "insoluble" sentences: Chapter one of his Rules for solving sophisms. Mediaeval sources in translation.

Cita Chicago Style (17a ed.)

Guilelmus, Hentisberus, y Paul Vincent Spade. "On "Insoluble" Sentences: Chapter One of His Rules for Solving Sophisms." Mediaeval Sources in Translation 1979.

Cita MLA (8a ed.)

Guilelmus, Hentisberus, y Paul Vincent Spade. "On "Insoluble" Sentences: Chapter One of His Rules for Solving Sophisms." Mediaeval Sources in Translation, 1979.

Precaución: Estas citas no son 100% exactas.