Styl cytowania APA

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

Styl cytowania Chicago

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

Styl cytowania MLA

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