Gaya APA
cordell, G, A.
(1981).
Introducton to alkaloids : A Biogenetica Approach
.
USA:
a wiilley interescience.
Gaya MLA
cordell, Geofrey, A..
"Introducton to alkaloids : A Biogenetica Approach".
USA:
a wiilley interescience,
1981.
Text.