Gaya APA
Rennard, S, I. (2008).
Clinical Management of Chronic Obstructive Pulmanory Disease .
CHAMPAIGN:
Harwood Academic.
Gaya MLA
Rennard, Stephen, I..
"Clinical Management of Chronic Obstructive Pulmanory Disease".
CHAMPAIGN:
Harwood Academic,
2008.
PERAWAT.