APA استشهاد

Harre, R. (1972). The Philosophies of Science: :an introductory survey. Oxford University Press.

استشهاد بنمط شيكاغو

Harre, R. The Philosophies of Science: :an Introductory Survey. London: Oxford University Press, 1972.

MLA استشهاد

Harre, R. The Philosophies of Science: :an Introductory Survey. Oxford University Press, 1972.