APA (7th ed.) Citation

Perloff, R., & Perloff, E. (1980). Values, ethics, and standards in evaluation. Jossey-Bass.

Chicago Style (17th ed.) Citation

Perloff, Robert, and Evelyn Perloff. Values, Ethics, and Standards in Evaluation. San Frnacisco, Calif.: Jossey-Bass, 1980.

MLA (9th ed.) Citation

Perloff, Robert, and Evelyn Perloff. Values, Ethics, and Standards in Evaluation. Jossey-Bass, 1980.