Parry, G., & Watts, F. N. (1989). Behavioural and mental health research: A handbook of skills and methods. LEA.
Chicago-čujuhus (17. p.)Parry, Glenys, juo Fraser N. Watts. Behavioural and Mental Health Research: A Handbook of Skills and Methods. Hove: LEA, 1989.
MLA-čujuhus (9. p.)Parry, Glenys, juo Fraser N. Watts. Behavioural and Mental Health Research: A Handbook of Skills and Methods. LEA, 1989.
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