Gaya APA
Helfman, G, S. et al ().
E-book The Diversity of Fishes : Biology, Evolution, and Ecology (2nd ed.).
London:
Blackwell Publishing.
Gaya MLA
Helfman, Gene, S.. et al.
"E-book The Diversity of Fishes : Biology, Evolution, and Ecology".
2nd ed.
London:
Blackwell Publishing,
.
Text.