Boruvka, O. (1976). Foundations of the theory of groupoids and groups. John Wileyand Sons.
Chicago Style (17th ed.) CitationBoruvka, Otakar. Foundations of the Theory of Groupoids and Groups. New York: John Wileyand Sons, 1976.
MLA (9th ed.) CitationBoruvka, Otakar. Foundations of the Theory of Groupoids and Groups. John Wileyand Sons, 1976.
Warning: These citations may not always be 100% accurate.