Cita APA (7th ed.)

McBurney, D. H. (1998). Research methods (4a. ed.). Brooks-Cole Publishing Company.

Cita Chicago (17th ed.)

McBurney, Donald H. Research Methods. 4a. ed. Pacific Grove: Brooks-Cole Publishing Company, 1998.

Cita MLA (9th ed.)

McBurney, Donald H. Research Methods. 4a. ed. Brooks-Cole Publishing Company, 1998.