APA aipamena

Hardin, G. (1961). Biology: Its principles and implications. San Francisco: W. H. Freeman.

Chicago Style aipamena

Hardin, Garret. Biology: Its Principles and Implications. San Francisco: W. H. Freeman, 1961.

MLA aipamena

Hardin, Garret. Biology: Its Principles and Implications. San Francisco: W. H. Freeman, 1961.

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