APA (7th ed.) Citation

Frey, D. H., & Heslet, F. E. (1975). Existential theory for counselors. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Frey, David H., and Frederick E. Heslet. Existential Theory for Counselors. Boston: Houghton Mifflin, 1975.

MLA (9th ed.) Citation

Frey, David H., and Frederick E. Heslet. Existential Theory for Counselors. Houghton Mifflin, 1975.