APA (7th ed.) Citation

International Congress of Psychology Sydney, N.S.W, International Union of Psychological Science, Australian Psychological Society, & Keats, J. A. (1989). Mathematical and theoretical systems. North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co..

Chicago Style (17th ed.) Citation

International Congress of Psychology Sydney, N.S.W, International Union of Psychological Science, Australian Psychological Society, and J. A. Keats. Mathematical and Theoretical Systems. Amsterdam ; New York : New York, N.Y., U.S.A.: North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co., 1989.

MLA (9th ed.) Citation

International Congress of Psychology Sydney, N.S.W, et al. Mathematical and Theoretical Systems. North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co., 1989.