Karstein, H. (1968). New horizones in marketing. Thacker & Co.
Chicago Style aipamenaKarstein, H. New Horizones in Marketing. Bombay: Thacker & Co, 1968.
MLA aipamenaKarstein, H. New Horizones in Marketing. Thacker & Co, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.