एपीए उद्धरण

Engel, R. J. (2010). Fundamentals of social work research. Los Angeles: SAGE.

शिकागो स्टाइल उद्धरण

Engel, Rafael J. Fundamentals of Social Work Research. Los Angeles: SAGE, 2010.

एमएलए उद्धरण

Engel, Rafael J. Fundamentals of Social Work Research. Los Angeles: SAGE, 2010.