APA ציטוט

Booulding, K. E. (1964). The meaning of the Twentieth Century. Higginbothams.

Chicago Edition Citation

Booulding, Kenneth E. The Meaning of the Twentieth Century. Madras: Higginbothams, 1964.

ציטוט MLA

Booulding, Kenneth E. The Meaning of the Twentieth Century. Higginbothams, 1964.