Dyfyniad APA

Parry, G., & Watts, F. N. (1989). Behavioural and mental health research: A handbook of skills and methods. LEA.

Dyfyniad Arddull Chicago

Parry, Glenys, and Fraser N. Watts. Behavioural and Mental Health Research: A Handbook of Skills and Methods. Hove: LEA, 1989.

Dyfyniad MLA

Parry, Glenys, and Fraser N. Watts. Behavioural and Mental Health Research: A Handbook of Skills and Methods. LEA, 1989.

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