Cita APA (7th ed.)

Ridley, D., & Metzler, K. (2012). The Literature Review: A step-by-step guide for students (2ª edición.). Sage Publications Inc.

Cita Chicago (17th ed.)

Ridley, Diana, i Katie Metzler. The Literature Review: A Step-by-step Guide for Students. 2ª edición. Los Ángeles, California: Sage Publications Inc, 2012.

Cita MLA (9th ed.)

Ridley, Diana, i Katie Metzler. The Literature Review: A Step-by-step Guide for Students. 2ª edición. Sage Publications Inc, 2012.