Gaya APA

, ., Szpiro, G, G. (2003). Kepler`s conjecture: how some of greatest minds in history helped solve one of oldest math problems in the world . New York: .

Gaya MLA

, ., Szpiro, George, G.. "Kepler`s conjecture: how some of greatest minds in history helped solve one of oldest math problems in the world". New York: , 2003. Text.