Eastaway R. Rob & Wyndham J. Jeremy. (2003). Why do Buses come in threes? The hidden mathematics of everyday life. London, Robinson, 2003.
Čikaški stil citiranja (17. izdanje)Eastaway R. Rob i Wyndham J. Jeremy. Why Do Buses Come in Threes? The Hidden Mathematics of Everyday Life. London, Robinson, 2003, 2003.
MLA način citiranja (9. izdanje)Eastaway R. Rob i Wyndham J. Jeremy. Why Do Buses Come in Threes? The Hidden Mathematics of Everyday Life. London, Robinson, 2003, 2003.
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