Παραπομπή APA

Park, C. F., & Freeman, M. C. (1975). Earthbound: Minerals, energy, and man's future. San Francisco: Freeman, Cooper.

Παραπομπή Chicago Style

Park, Charles Frederick, and Margaret C. Freeman. Earthbound: Minerals, Energy, and Man's Future. San Francisco: Freeman, Cooper, 1975.

Παραπομπή MLA

Park, Charles Frederick, and Margaret C. Freeman. Earthbound: Minerals, Energy, and Man's Future. San Francisco: Freeman, Cooper, 1975.

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