Gaya APA
Yuh, D, D. et al (2007).
The Jhon hopkins manual of cardiothoracis surgery (1).
United States of America:
McGraw-Hill Book Company.
Gaya MLA
Yuh, David, D.. et al.
"The Jhon hopkins manual of cardiothoracis surgery".
1
United States of America:
McGraw-Hill Book Company,
2007.
Text.