Dyfyniad APA

Beres, L. R., & Targ, H. R. (1975). Planning alternative world futures: Values, methods, and models. Prager Pub.

Dyfyniad Arddull Chicago

Beres, Louis Rene, and Harry R. Targ. Planning Alternative World Futures: Values, Methods, and Models. New York: Prager Pub, 1975.

Dyfyniad MLA

Beres, Louis Rene, and Harry R. Targ. Planning Alternative World Futures: Values, Methods, and Models. Prager Pub, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.