Παραπομπή APA

Samuelson, P. A. (1978). Readings in economics (Ed.7.).

Παραπομπή Chicago Style

Samuelson, Paul A. Readings in Economics. Ed.7. New Delhi, Tata Mc Graw Hill, 1978.

Παραπομπή MLA

Samuelson, Paul A. Readings in Economics. Ed.7. 1978.