Gaya APA
Ryan,dkk, K, J.
(1994).
Sherris Medical Microbiology An Indroduction to
.
Jakarta :
Appleton &Lange.
Gaya MLA
Ryan,dkk, Kemneth, J..
"Sherris Medical Microbiology An Indroduction to".
Jakarta :
Appleton &Lange,
1994.
Text.