APA način citiranja

Appell, J. (2004). Nonlinear spectral theory. Walter de Gruyter.

Čikaški stil citiranja

Appell, Jurgen. Nonlinear Spectral Theory. New York: Walter de Gruyter, 2004.

MLA način citiranja

Appell, Jurgen. Nonlinear Spectral Theory. Walter de Gruyter, 2004.