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Dyfyniad Arddull ChicagoMarketing Health Behavior: Principles, Techniques and Applications / Edited by Lee W. Fredericksen . . . [et Al]. New York: Plenum Press, 1984.
Dyfyniad MLAMarketing Health Behavior: Principles, Techniques and Applications / Edited by Lee W. Fredericksen . . . [et Al]. Plenum Press, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.