Cita APA

Gray, C. D., & Kinnear, P. R. (2012). IBM SPSS statistics 19 made simple. New York: Psychology Press.

Citación estilo Chicago

Gray, Colin D., y Paul R. Kinnear. IBM SPSS Statistics 19 Made Simple. New York: Psychology Press, 2012.

Cita MLA

Gray, Colin D., y Paul R. Kinnear. IBM SPSS Statistics 19 Made Simple. New York: Psychology Press, 2012.