Παραπομπή APA

Lange, O. (1960). Essays on economic planning (2nd ed.). Asia publishing house.

Παραπομπή Chicago Style

Lange, Oskar. Essays on Economic Planning. 2nd ed. New Delhi: Asia publishing house, 1960.

Παραπομπή MLA

Lange, Oskar. Essays on Economic Planning. 2nd ed. Asia publishing house, 1960.