Cita APA (7a ed.)

Burns, R. B. (2000). Introduction to research methods (4th ed.). SAGE.

Cita Chicago Style (17a ed.)

Burns, Robert B. Introduction to Research Methods. 4th ed. London: SAGE, 2000.

Cita MLA (9a ed.)

Burns, Robert B. Introduction to Research Methods. 4th ed. SAGE, 2000.