Cita APA (7a ed.)

Geiss, S. K., & O'Leary, K. D. (1981). Therapist ratings of frequency and severity of marital problems: Implications for research. [s.n.].

Cita Chicago Style (17a ed.)

Geiss, Susan K., y K. Daniel O'Leary. Therapist Ratings of Frequency and Severity of Marital Problems: Implications for Research. [S.l.]: [s.n.], 1981.

Cita MLA (9a ed.)

Geiss, Susan K., y K. Daniel O'Leary. Therapist Ratings of Frequency and Severity of Marital Problems: Implications for Research. [s.n.], 1981.