APA استشهاد

Levitt, T. (1973). The third sector: New tactice for a responsive society. American management association.

استشهاد بنمط شيكاغو

Levitt, Theodore. The Third Sector: New Tactice for a Responsive Society. New York: American management association, 1973.

MLA استشهاد

Levitt, Theodore. The Third Sector: New Tactice for a Responsive Society. American management association, 1973.