APA استشهاد

Peitgen, H. -. o. (1992). Fractals for the classroom. Springer-Verlag.

استشهاد بنمط شيكاغو

Peitgen, Heinz - otto. Fractals for the Classroom. NewYork: Springer-Verlag, 1992.

MLA استشهاد

Peitgen, Heinz - otto. Fractals for the Classroom. Springer-Verlag, 1992.