APA (7th ed.) Citation

Arkowitz, M., & Curjel, C. R. (1967). Groups of homotopy classes. Spriger-Verlag.

Chicago Style (17th ed.) Citation

Arkowitz, Martin, and Caspar R. Curjel. Groups of Homotopy Classes. Berlin: Spriger-Verlag, 1967.

MLA (8th ed.) Citation

Arkowitz, Martin, and Caspar R. Curjel. Groups of Homotopy Classes. Spriger-Verlag, 1967.

Warning: These citations may not always be 100% accurate.