KRISHNA S. (1968). POSITIVE MARKETING. HEMKONT PRESS.
Chicago Style aipamenaKRISHNA S. POSITIVE MARKETING. NEW DELHI: HEMKONT PRESS, 1968.
MLA aipamenaKRISHNA S. POSITIVE MARKETING. HEMKONT PRESS, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.