Παραπομπή APA

Platt, R. S. (1959). Field study in american geography: The development of theory and method exemplified by selections. Chicago: The University of Chicago.

Παραπομπή Chicago Style

Platt, Robert S. Field Study in American Geography: The Development of Theory and Method Exemplified By Selections. Chicago: The University of Chicago, 1959.

Παραπομπή MLA

Platt, Robert S. Field Study in American Geography: The Development of Theory and Method Exemplified By Selections. Chicago: The University of Chicago, 1959.

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