Παραπομπή APA

Lester, R. A. (1965). Economics of labour/2e (2nd ed.). Mc Graw Hill.

Παραπομπή Chicago Style

Lester, Richard A. Economics of Labour/2e. 2nd ed. New York: Mc Graw Hill, 1965.

Παραπομπή MLA

Lester, Richard A. Economics of Labour/2e. 2nd ed. Mc Graw Hill, 1965.