Gaya APA
Balaskas, J., Gordon, Y. (1992).
The Encycopedia Of Pregnancy And Birth .
Sebastopol, CA:
Little Brown And Company.
Gaya MLA
Balaskas, Janet., Gordon, Yehudi.
"The Encycopedia Of Pregnancy And Birth".
Sebastopol, CA:
Little Brown And Company,
1992.
Text.