Royen, W. V. (1964). Fundamentals of economic geography: An introduction to the study of resources (5th ed.). Prentice-Hall.
Chicagoスタイル(17版)引用形式Royen, William Van. Fundamentals of Economic Geography: An Introduction to the Study of Resources. 5th ed. Englewood Cliffs N.J.: Prentice-Hall, 1964.
MLA(9版)引用形式Royen, William Van. Fundamentals of Economic Geography: An Introduction to the Study of Resources. 5th ed. Prentice-Hall, 1964.
警告: この引用は必ずしも正確ではありません.