APA (7th ed.) Citation

Baues, H. J. (1977). Obstruction Theory: On Homotopy Classification of Maps. Springer. https://doi.org/10.1007/BFb0065144

Chicago Style (17th ed.) Citation

Baues, Hans J. Obstruction Theory: On Homotopy Classification of Maps. Berlin [u.a.]: Springer, 1977. https://doi.org/10.1007/BFb0065144.

MLA (9th ed.) Citation

Baues, Hans J. Obstruction Theory: On Homotopy Classification of Maps. Springer, 1977. https://doi.org/10.1007/BFb0065144.