Gaya APA
ASHER, C, R., GRIFFIN, B, P.
(2018).
Manual of valvular heart disease
.
Philadelphia:
Wolters Kluwer.
Gaya MLA
ASHER, Craig, R., GRIFFIN, Brian, P.
"Manual of valvular heart disease".
Philadelphia:
Wolters Kluwer,
2018.
Text.