Dyfyniad APA

Sulphy and Safeer. (2018). Introduction to Environment Management (4th.). PHI Learning.

Dyfyniad Arddull Chicago

Sulphy and Safeer. Introduction to Environment Management. 4th. PHI Learning, 2018.

Dyfyniad MLA

Sulphy and Safeer. Introduction to Environment Management. 4th. PHI Learning, 2018.

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