APA (7th ed.) Citation

Sidney, E., Argyle, M., & Brown, M. (1973). Skills with people: A guide for managers. Hutchinson.

Chicago Style (17th ed.) Citation

Sidney, Elizabeth, Michael Argyle, and Margaret Brown. Skills with People: A Guide for Managers. London: Hutchinson, 1973.

MLA (9th ed.) Citation

Sidney, Elizabeth, et al. Skills with People: A Guide for Managers. Hutchinson, 1973.