Cita APA (7a ed.)

Christensen, L. B. (1985). Experimental methodology (3rd ed.). gráf.

Cita Chicago Style (17a ed.)

Christensen, Larry B. Experimental Methodology. 3rd ed. Boston [etc.]: gráf, 1985.

Cita MLA (9a ed.)

Christensen, Larry B. Experimental Methodology. 3rd ed. gráf, 1985.