APA引文

Engel, R. J., & Schutt, R. K. (2013). The practice of research in social work. Los Angeles: SAGE.

Trích dẫn kiểu Chicago

Engel, Rafael J., và Russell K. Schutt. The Practice of Research in Social Work. Los Angeles: SAGE, 2013.

MLA引文

Engel, Rafael J., và Russell K. Schutt. The Practice of Research in Social Work. Los Angeles: SAGE, 2013.

警告：这些引文格式不一定是100％准确.