Gaya APA
Rustam, M., Delfi, L. (1998).
Sinopsis obstetri: obstetri operatif obstetri sosial ed.2, jil.2 (Ed. 2, Cet.1).
Jakarta:
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Gaya MLA
Mochtar, Rustam., Lutan, Delfi.
"Sinopsis obstetri: obstetri operatif obstetri sosial ed.2, jil.2".
Ed. 2, Cet.1
Jakarta:
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1998.
Textbook.