Παραπομπή APA

Jathar, G., & Beri, S. (1966). Elementary principles of economics (10th ed.).

Παραπομπή Chicago Style

Jathar, G.B, και S.G Beri. Elementary Principles of Economics. 10th ed. 1966.

Παραπομπή MLA

Jathar, G.B, και S.G Beri. Elementary Principles of Economics. 10th ed. 1966.