APA استشهاد

Peitgen, H., & Jurgens, H. .. a. (1991). Fractals for the classroom. Springer-Verlag.

استشهاد بنمط شيكاغو

Peitgen, Heinz-otto, و Harmut ...[et al.] Jurgens. Fractals for the Classroom. New York: Springer-Verlag, 1991.

MLA استشهاد

Peitgen, Heinz-otto, و Harmut ...[et al.] Jurgens. Fractals for the Classroom. Springer-Verlag, 1991.