Dyfyniad APA

MACFADYEN, A. Animal ecilogy: Aims and methods. Sir Isaac Pitman & Sons Ltd.

Dyfyniad Arddull Chicago

MACFADYEN, A. Animal Ecilogy: Aims and Methods. Sir Isaac Pitman & Sons Ltd.

Dyfyniad MLA

MACFADYEN, A. Animal Ecilogy: Aims and Methods. Sir Isaac Pitman & Sons Ltd.

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