Cita APA (7a ed.)

Symposium on maternal rcognition of preganancy London GB & CIBA-GEIGY. (1979). Symposium on maternal rcognition of preganancy: Held at the Ciba Foundation. [editor no identificado].

Cita Chicago Style (17a ed.)

Symposium on maternal rcognition of preganancy London GB y CIBA-GEIGY. Symposium on Maternal Rcognition of Preganancy: Held at the Ciba Foundation. Amsterdam: [editor no identificado], 1979.

Cita MLA (8a ed.)

Symposium on maternal rcognition of preganancy London GB y CIBA-GEIGY. Symposium on Maternal Rcognition of Preganancy: Held at the Ciba Foundation. [editor no identificado], 1979.