APA (7th ed.) Citation

Overs, R. P., Taylor, S., & Adkins, C. (1977). Avocational counseling manual. Hawkins.

Chicago Style (17th ed.) Citation

Overs, Robert P., Sharon Taylor, and Catherine Adkins. Avocational Counseling Manual. Washington, D.C.: Hawkins, 1977.

MLA (9th ed.) Citation

Overs, Robert P., et al. Avocational Counseling Manual. Hawkins, 1977.