APA استشهاد

Fromm,Erich. (1978). To have or to be: A new blue print of mankind. Abacus.

استشهاد بنمط شيكاغو

Fromm,Erich. To Have or to Be: A New Blue Print of Mankind. London: Abacus, 1978.

MLA استشهاد

Fromm,Erich. To Have or to Be: A New Blue Print of Mankind. Abacus, 1978.