Dyfyniad APA

Watkins, K. W. (1998). Student study guide to accompany Chang chemistry (6th ed.). WCB.

Dyfyniad Arddull Chicago

Watkins, Kenneth W. Student Study Guide to Accompany Chang Chemistry. 6th ed. Boston: WCB, 1998.

Dyfyniad MLA

Watkins, Kenneth W. Student Study Guide to Accompany Chang Chemistry. 6th ed. WCB, 1998.

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