Gaya APA

Arulkumaran, S., Sivanesaratman, V. (2017). Essentials of Obstetrics (Ed. 3). New Delhi: Jaypee.

Gaya MLA

Arulkumaran, Sabaratnam., Sivanesaratman, V.. "Essentials of Obstetrics". Ed. 3 New Delhi: Jaypee, 2017. Text.