APA استشهاد

Dufty, N. (1966). Managerial economics. Asia publishing house.

استشهاد بنمط شيكاغو

Dufty, N.F. Managerial Economics. Bombay: Asia publishing house, 1966.

MLA استشهاد

Dufty, N.F. Managerial Economics. Asia publishing house, 1966.