Piccard, B. J. (1975). An introduction to social work: A primer. Dorsey Press.
Lua i Stíl Chicago (17ú heag.)Piccard, Betty J. An Introduction to Social Work: A Primer. Homewood, Ill.: Dorsey Press, 1975.
Lua MLA (8ú heag.)Piccard, Betty J. An Introduction to Social Work: A Primer. Dorsey Press, 1975.
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