Παραπομπή APA

Halbert, M. (1965). Meaning and sources of marketing theory. McGraw Hill.

Παραπομπή Chicago Style

Halbert, Michael. Meaning and Sources of Marketing Theory. New York: McGraw Hill, 1965.

Παραπομπή MLA

Halbert, Michael. Meaning and Sources of Marketing Theory. McGraw Hill, 1965.