Citazione Stile APA (7a Edizione)

Baues, H. J. (1977). Obstruction theory on homotopy classification maps. Springer-Verlag.

Citazione stile Chigago Style (17a edizione)

Baues, Hans J. Obstruction Theory on Homotopy Classification Maps. Berlín: Springer-Verlag, 1977.

Citatione MLA (9a ed.)

Baues, Hans J. Obstruction Theory on Homotopy Classification Maps. Springer-Verlag, 1977.