Cita APA (7th ed.)

Bostock, D. (1974). Logic and arithmetic: Natural numbers. Clarendon Pr..

Cita Chicago (17th ed.)

Bostock, David. Logic and Arithmetic: Natural Numbers. Oxford: Clarendon Pr., 1974.

Cita MLA (9th ed.)

Bostock, David. Logic and Arithmetic: Natural Numbers. Clarendon Pr., 1974.