Porter, K. V. (1971). Case studies in human relations. Macmillian.
Dyfyniad Arddull ChicagoPorter, Kenneth V. Case Studies in Human Relations. london: Macmillian, 1971.
Dyfyniad MLAPorter, Kenneth V. Case Studies in Human Relations. Macmillian, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.