Gaya APA
McGowan, M, P., Chopra, J, M.
(2004).
Gastric Bypass Surgery
.
UnitedStateofAmerica:
McGraw-Hill.
Gaya MLA
McGowan, Mary, P.., Chopra, Jo, McGowan.
"Gastric Bypass Surgery".
UnitedStateofAmerica:
McGraw-Hill,
2004.
Text.