Berman, D. R., & Bollens, J. C. (1981). American government: Ideas and issues. Palisades.
Dyfyniad Arddull ChicagoBerman, David R., and John C. Bollens. American Government: Ideas and Issues. Pacific Palisades, Calif: Palisades, 1981.
Dyfyniad MLABerman, David R., and John C. Bollens. American Government: Ideas and Issues. Palisades, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.