Cita APA

Sainsbury, R. M. (1991). Logical forms: An introduction to philosophical logic. B. Blackwell.

Chicago Edition Citation

Sainsbury, R. M. Logical Forms: An Introduction to Philosophical Logic. Oxford, UK ; Cambridge, Mass.: B. Blackwell, 1991.

Cita MLA

Sainsbury, R. M. Logical Forms: An Introduction to Philosophical Logic. B. Blackwell, 1991.