Cita APA (7th ed.)

CHRISTENSEN, L. B. (1988). Experimental methodology.--Ed. 4. Allyn and Bacon.

Cita Chicago (17th ed.)

CHRISTENSEN, Larry B. Experimental Methodology.--Ed. 4. Boston: Allyn and Bacon, 1988.

Cita MLA (9th ed.)

CHRISTENSEN, Larry B. Experimental Methodology.--Ed. 4. Allyn and Bacon, 1988.