Παραπομπή APA

Levkovsky, A., & Shapiro, J. (1987). The developing countries' social structure. Moscow: Progress Publishers.

Παραπομπή Chicago Style

Levkovsky, Alexei, and Joseph Shapiro. The Developing Countries' Social Structure. Moscow: Progress Publishers, 1987.

Παραπομπή MLA

Levkovsky, Alexei, and Joseph Shapiro. The Developing Countries' Social Structure. Moscow: Progress Publishers, 1987.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.