Petkovic,Miodrag. (2012). Famous puzzles of great mathematicians. Universities Press.
Čikaški stil citiranjaPetkovic,Miodrag. Famous Puzzles of Great Mathematicians. Hyderabad: Universities Press, 2012.
MLA način citiranjaPetkovic,Miodrag. Famous Puzzles of Great Mathematicians. Universities Press, 2012.
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