Petikan APA

Humphreys, W. C. (1968). Anomalies and scientific theories. San Francisco: Freeman, Cooper.

Petikan Gaya Chicago

Humphreys, Willard C. Anomalies and Scientific Theories. San Francisco: Freeman, Cooper, 1968.

Petikan MLA

Humphreys, Willard C. Anomalies and Scientific Theories. San Francisco: Freeman, Cooper, 1968.

Amaran: Petikan-petikan ini tidak semestinya 100% tepat.