Παραπομπή APA

Karstein, H. (1968). New horizones in marketing. Thacker & Co.

Παραπομπή Chicago Style

Karstein, H. New Horizones in Marketing. Bombay: Thacker & Co, 1968.

Παραπομπή MLA

Karstein, H. New Horizones in Marketing. Thacker & Co, 1968.