APA (7th ed.) Citation

European Mathematical Psychology Group & Roskam, E. E. C. I. (1989). Mathematical psychology in progress. Springer-Verlag.

Chicago Style (17th ed.) Citation

European Mathematical Psychology Group and Edward Elias Charles Iben Roskam. Mathematical Psychology in Progress. Berlin ; New York: Springer-Verlag, 1989.

MLA (9th ed.) Citation

European Mathematical Psychology Group and Edward Elias Charles Iben Roskam. Mathematical Psychology in Progress. Springer-Verlag, 1989.