APA (7th ed.) Citation

European Congress of Psychology, Drenth, P. J. D., Sergeant, J. A., & Takens, R. J. (1990). European perspectives in psychology. John Wiley & Sons.

Chicago Style (17th ed.) Citation

European Congress of Psychology, Pieter J. D. Drenth, Joseph A. Sergeant, and Roelf J. Takens. European Perspectives in Psychology. Chichester [etc.]: John Wiley & Sons, 1990.

MLA (9th ed.) Citation

European Congress of Psychology, et al. European Perspectives in Psychology. John Wiley & Sons, 1990.