APA استشهاد

Leach,James. (1973). Science,decision and value: Proceedings of the fifth university of western ontario philosophy colloquium. D Reidel.

استشهاد بنمط شيكاغو

Leach,James. Science,decision and Value: Proceedings of the Fifth University of Western Ontario Philosophy Colloquium. Boaston: D Reidel, 1973.

MLA استشهاد

Leach,James. Science,decision and Value: Proceedings of the Fifth University of Western Ontario Philosophy Colloquium. D Reidel, 1973.