APA استشهاد

Arnold, V. I., & Arnolʹd, V. I. (1985). Singularities of differentiable maps. Birkhäuser.

استشهاد بنمط شيكاغو

Arnold, V. I., و V. I.;Gusein-Zade Arnolʹd. Singularities of Differentiable Maps. Boston: Birkhäuser, 1985.

MLA استشهاد

Arnold, V. I., و V. I.;Gusein-Zade Arnolʹd. Singularities of Differentiable Maps. Birkhäuser, 1985.