APA ציטוט

O'Leary, Z. (2004). The essential guide to doing research. London ; Thoundand Oaks: SAGE.

Trích dẫn kiểu Chicago

O'Leary, Zina. The Essential Guide to Doing Research. London ; Thoundand Oaks: SAGE, 2004.

ציטוט MLA

O'Leary, Zina. The Essential Guide to Doing Research. London ; Thoundand Oaks: SAGE, 2004.