Polakowski, K. J. (1987). Zoo design: The reality of wild illusions. University of Michigan, School of Natural Resources.
Chicagoスタイル(17版)引用形式Polakowski, Kenneth J. Zoo Design: The Reality of Wild Illusions. [Ann Harbor]: University of Michigan, School of Natural Resources, 1987.
MLA(9版)引用形式Polakowski, Kenneth J. Zoo Design: The Reality of Wild Illusions. University of Michigan, School of Natural Resources, 1987.
警告: この引用は必ずしも正確ではありません.