Arkowitz, M., & Curjel, C. R. (1964). Groups of homotopy classes rank formulas and homotopy-commutativity / M. Arkowitz, C.R. Curjel: Rank formulas and homotopy-commutativity. Springer-Verlag.
Chicago Style (17th ed.) CitationArkowitz, Martin, and Caspar R. Curjel. Groups of Homotopy Classes Rank Formulas and Homotopy-commutativity / M. Arkowitz, C.R. Curjel: Rank Formulas and Homotopy-commutativity. Berlin ; New York: Springer-Verlag, 1964.
MLA (9th ed.) CitationArkowitz, Martin, and Caspar R. Curjel. Groups of Homotopy Classes Rank Formulas and Homotopy-commutativity / M. Arkowitz, C.R. Curjel: Rank Formulas and Homotopy-commutativity. Springer-Verlag, 1964.
Warning: These citations may not always be 100% accurate.