Gaya APA
Heffner, L, J., Schust, D, J.
(2008).
At a Glance : Sistem Reproduksi
(
Edisi 2)
.
Jakarta:
Crown publishers.
Gaya MLA
Heffner, Linda, J., Schust, Danny, J..
"At a Glance : Sistem Reproduksi".
Edisi 2
Jakarta:
Crown publishers,
2008.
Text.