Cita APA (7a ed.)

Thomas, R. (2011). Natural deduction: : an introduction to logic with real arguments, a little history, and some humour. Broadview Press.

Cita Chicago Style (17a ed.)

Thomas, Richard. Natural Deduction: : An Introduction to Logic with Real Arguments, a Little History, and Some Humour. Peterborough, Ont.: Broadview Press, 2011.

Cita MLA (9a ed.)

Thomas, Richard. Natural Deduction: : An Introduction to Logic with Real Arguments, a Little History, and Some Humour. Broadview Press, 2011.