Παραπομπή APA

Schwartz, G. (1963). Development of marketing theory. South-Western publishng Co.

Παραπομπή Chicago Style

Schwartz, George. Development of Marketing Theory. Chicago: South-Western publishng Co, 1963.

Παραπομπή MLA

Schwartz, George. Development of Marketing Theory. South-Western publishng Co, 1963.