Rawnsley, A. (1978). Manual of industrial marketing research. John Wiley.
Dyfyniad Arddull ChicagoRawnsley, A. Manual of Industrial Marketing Research. New york: John Wiley, 1978.
Dyfyniad MLARawnsley, A. Manual of Industrial Marketing Research. John Wiley, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.