Cita APA (7a ed.)

Nebraska Symposium on Motivation, Jacobs, J. E., & Ryan, R. M. (1993). Developmental perspectives on motivation. University of Nebraska Press.

Cita Chicago Style (17a ed.)

Nebraska Symposium on Motivation, Janis E. Jacobs, y Richard M. Ryan. Developmental Perspectives on Motivation. Lincoln [etc.]: University of Nebraska Press, 1993.

Cita MLA (9a ed.)

Nebraska Symposium on Motivation, et al. Developmental Perspectives on Motivation. University of Nebraska Press, 1993.