Alexander, R. S., James S Cross, & Richard M Hill. (1967). Industrial marketing/3e (3rd ed.). D B Taraporevala sons&com.
Dyfyniad Arddull ChicagoAlexander, Ralph S., James S Cross, and Richard M Hill. Industrial Marketing/3e. 3rd ed. Bombay: D B Taraporevala sons&com, 1967.
Dyfyniad MLAAlexander, Ralph S., et al. Industrial Marketing/3e. 3rd ed. D B Taraporevala sons&com, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.