Gaya APA

Heller, L. et al. (1991). Gawat Darurat Ginekologi dan Obstetri (Emergencies In Gynecology and Obstetrics) (Cet. 01). Geneva: Penerbit Buku Kedokteran EGC.

Gaya MLA

Heller, L. et al.. Gawat Darurat Ginekologi dan Obstetri (Emergencies In Gynecology and Obstetrics). Cet. 01 Geneva: Penerbit Buku Kedokteran EGC, 1991. .