Cita APA (7a ed.)

Ernst, C. (1989). Psychological aspects of artificial procreation. [s.n.].

Cita Chicago Style (17a ed.)

Ernst, Cécile. Psychological Aspects of Artificial Procreation. [S.l.]: [s.n.], 1989.

Cita MLA (9a ed.)

Ernst, Cécile. Psychological Aspects of Artificial Procreation. [s.n.], 1989.