Παραπομπή APA

Boyd, H. W. (1985). Marketing research (6.). All India Traveller Book Seller.

Παραπομπή Chicago Style

Boyd, H W. Marketing Research. 6. New Delhi: All India Traveller Book Seller, 1985.

Παραπομπή MLA

Boyd, H W. Marketing Research. 6. All India Traveller Book Seller, 1985.