Παραπομπή APA

Theobald, D. (1968). Introduction to the philosophy of science. Methuen.

Παραπομπή Chicago Style

Theobald, D.W. Introduction to the Philosophy of Science. London: Methuen, 1968.

Παραπομπή MLA

Theobald, D.W. Introduction to the Philosophy of Science. Methuen, 1968.