Παραπομπή APA

Hardin, C. M. (1969). Overcoming world hunger. Feffer abd simoo.

Παραπομπή Chicago Style

Hardin, Clifford M. Overcoming World Hunger. Bombay: Feffer abd simoo, 1969.

Παραπομπή MLA

Hardin, Clifford M. Overcoming World Hunger. Feffer abd simoo, 1969.