APA Edition Citation

Ebbinghaus, H. D., Ewing, J. H. E., & Orde, H. L. S. T. (1990). Numbers.

Chicago Edition Citation

Ebbinghaus, H D., J H; Ed Ewing, and H L S; Tr Orde. Numbers. New York, Springer-Verlag, 1990.

MLA Edition Citation

Ebbinghaus, H D., et al. Numbers. 1990.