APA Style
Whitfield,C.R., .
(1972).
Dewhursts Text Book of Obstetrics.
(
4th Edition.)
.
Singapore::
Pg Publisher..
MLA Style
Whitfield,C.R., .
"Dewhursts Text Book of Obstetrics.".
4th Edition.
Singapore::
Pg Publisher.,
1972.
Text.