Arkowitz, M., & Curjel, C. R. (1967). Groups of homotopy classes (2a. ed.). Springer-Verlag.
Chicago Style (17th ed.) CitationArkowitz, M., and C. R. Curjel. Groups of Homotopy Classes. 2a. ed. Berlín: Springer-Verlag, 1967.
MLA引文Arkowitz, M., and C. R. Curjel. Groups of Homotopy Classes. 2a. ed. Springer-Verlag, 1967.
警告:這些引文格式不一定是100%准確.