Παραπομπή APA

George Couvalis. (1997). The philosophy of science: Science and objectivity. Sage.

Παραπομπή Chicago Style

George Couvalis. The Philosophy of Science: Science and Objectivity. New Delhi: Sage, 1997.

Παραπομπή MLA

George Couvalis. The Philosophy of Science: Science and Objectivity. Sage, 1997.