APA (7th ed.) Citation

Helms, J. E. (1983). A practitioner's guide to the Edwards personal preference schedule. Thomas.

Chicago Style (17th ed.) Citation

Helms, Janet E. A Practitioner's Guide to the Edwards Personal Preference Schedule. Springfield, Ill.: Thomas, 1983.

MLA (9th ed.) Citation

Helms, Janet E. A Practitioner's Guide to the Edwards Personal Preference Schedule. Thomas, 1983.