Gaya APA
OTTO, C, M., BONOW, R, O.
(2009).
Valvular heart disease:
(
3rd ed.)
.
Philadelphia:
Saunders Elsevier.
Gaya MLA
OTTO, Catherine, M.., BONOW, Robert, O..
"Valvular heart disease:".
3rd ed.
Philadelphia:
Saunders Elsevier,
2009.
Buku.