Gaya APA
Heffner, L, J., Schust, D, J. (2010).
The Reproductive System at a Glance (3rd ed).
Hoboken:
Wiley-Blackwell.
Gaya MLA
Heffner, Linda, J.., Schust, Danny, J..
"The Reproductive System at a Glance".
3rd ed
Hoboken:
Wiley-Blackwell,
2010.
Text.