APA (7th ed.) Citation

Hopkins, N. J., Mayne, J. W., & Hudson, J. (1992). The numbers you need. Gale Research Inc..

Chicago Style (17th ed.) Citation

Hopkins, Nigel J., John W. Mayne, and John Hudson. The Numbers You Need. Detroit: Gale Research Inc., 1992.

MLA (9th ed.) Citation

Hopkins, Nigel J., et al. The Numbers You Need. Gale Research Inc., 1992.