Gaya APA
Jolles, P., muzzarelli, R, .
(1999).
Chitin and chitinases
.
Berlin:
Birkhauser Verlag.
Gaya MLA
Jolles, P.., muzzarelli, R.A.A., .
"Chitin and chitinases".
Berlin:
Birkhauser Verlag,
1999.
Text.