Cita APA (7th ed.)

ebrary, Inc, & Collins, S. (2008). Oxford handbook of obstetrics and gynaecology (2nd ed.). Oxford University Press.

Cita Chicago (17th ed.)

ebrary, Inc, i Sally Collins. Oxford Handbook of Obstetrics and Gynaecology. 2nd ed. Oxford ; New York: Oxford University Press, 2008.

Cita MLA (9th ed.)

ebrary, Inc, i Sally Collins. Oxford Handbook of Obstetrics and Gynaecology. 2nd ed. Oxford University Press, 2008.