APA način citiranja

Heck, A., & Perdang, J. (1991). Applying fractals in astronomy. Springer-Verlag.

Čikaški stil citiranja

Heck, A., i J.M Perdang. Applying Fractals in Astronomy. New York: Springer-Verlag, 1991.

MLA način citiranja

Heck, A., i J.M Perdang. Applying Fractals in Astronomy. Springer-Verlag, 1991.