Theobald, D. (1968). Introduction to the philosophy of science. Methuen.
Čikaški stil citiranjaTheobald, D.W. Introduction to the Philosophy of Science. London: Methuen, 1968.
MLA način citiranjaTheobald, D.W. Introduction to the Philosophy of Science. Methuen, 1968.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.