Dyfyniad APA

Polgar, S., & Thomas, S. (2020). Introduction to Research in the Health Sciences (7th ed.). Elsevier.

Dyfyniad Arddull Chicago

Polgar, Stephen, and Shane Thomas. Introduction to Research in the Health Sciences. 7th ed. New York: Elsevier, 2020.

Dyfyniad MLA

Polgar, Stephen, and Shane Thomas. Introduction to Research in the Health Sciences. 7th ed. Elsevier, 2020.

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