Gaya APA

YENTIS, S., MALHOTRA, S. (2013). Analilgesia, anaesthesia and pregnancy : (3rd ed.). Cambridge: Cambridge University Press.

Gaya MLA

YENTIS, Steve., MALHOTRA, Surbhi. "Analilgesia, anaesthesia and pregnancy :". 3rd ed. Cambridge: Cambridge University Press, 2013. Buku.