APA citiranje
Helfman, G. S., & Burgess, G. H. (2014). Sharks: The animal answer guide. John Hopkins University Press.
Chicago Style (17th ed.) Citation
Helfman, Gene S., and George H. Burgess. Sharks: The Animal Answer Guide. Baltimore, Maryland: John Hopkins University Press, 2014.
MLA citiranje
Helfman, Gene S., and George H. Burgess. Sharks: The Animal Answer Guide. John Hopkins University Press, 2014.
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