APA Style
M., 0., Otto., C, M.
(1997).
Echocardiography,
.
Philadelphia London.:
W.B. Saunders Company..
MLA Style
M., 0tt,Cathenine., Otto., Catherine, M..
"Echocardiography,".
Philadelphia London.:
W.B. Saunders Company.,
1997.
Text.