APA استشهاد

Ravetz, J. R. (1971). Scientific knowledge and its social problems. Penguin.

استشهاد بنمط شيكاغو

Ravetz, Jerome R. Scientific Knowledge and Its Social Problems. London: Penguin, 1971.

MLA استشهاد

Ravetz, Jerome R. Scientific Knowledge and Its Social Problems. Penguin, 1971.