Agrawal, S. (1964). Marketing research. Global business press.
Dyfyniad Arddull ChicagoAgrawal, Sangeetha. Marketing Research. New Delhi: Global business press, 1964.
Dyfyniad MLAAgrawal, Sangeetha. Marketing Research. Global business press, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.