Παραπομπή APA

Servi, I. S. (1990). New product development and marketing. Praeger.

Παραπομπή Chicago Style

Servi, Italo S. New Product Development and Marketing. New York: Praeger, 1990.

Παραπομπή MLA

Servi, Italo S. New Product Development and Marketing. Praeger, 1990.