Cita APA (7a ed.)

Verhulst, F. (1999). Psychoanalysis and chaos theory. [s.n.].

Cita Chicago Style (17a ed.)

Verhulst, F. Psychoanalysis and Chaos Theory. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Verhulst, F. Psychoanalysis and Chaos Theory. [s.n.], 1999.