Petersen, J. F., Sack, D. I., & Gabler, R. E. (2011). Fundamentals of physical geography. Brooks/Cole/Cengage Learning.
Chicagoスタイル(17版)引用形式Petersen, James F., Dorothy Irene Sack, , Robert E. Gabler. Fundamentals of Physical Geography. Belmont, California: Brooks/Cole/Cengage Learning, 2011.
MLA(9版)引用形式Petersen, James F., et al. Fundamentals of Physical Geography. Brooks/Cole/Cengage Learning, 2011.
警告: この引用は必ずしも正確ではありません.