Cita APA

Schwarz, P. A., & Krug, R. E. (1972). Ability testing in developing countries.. New York: Praeger Publishers.

Citación estilo Chicago

Schwarz, Paul A., and Robert E. Krug. Ability Testing in Developing Countries.. New York: Praeger Publishers, 1972.

Cita MLA

Schwarz, Paul A., and Robert E. Krug. Ability Testing in Developing Countries.. New York: Praeger Publishers, 1972.