Cita APA (7a ed.)

National Conference on Graduate Education in Psychology, Bickman, L., & Ellis, H. C. (1990). Preparing psychologists for the 21st century: Proceedings of the National Conference on Graduate Education in Psychology. Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

National Conference on Graduate Education in Psychology, Leonard Bickman, y Henry C. Ellis. Preparing Psychologists for the 21st Century: Proceedings of the National Conference on Graduate Education in Psychology. Hillsdale, New Jersey [etc.]: Lawrence Erlbaum, 1990.

Cita MLA (9a ed.)

National Conference on Graduate Education in Psychology, et al. Preparing Psychologists for the 21st Century: Proceedings of the National Conference on Graduate Education in Psychology. Lawrence Erlbaum, 1990.