APA citiranje

National Council of Teachers of Mathematics., & Peitgen, H. (1999). Fractals for the classroom: Strategic activities. New York: Springer.

Trích dẫn kiểu Chicago

National Council of Teachers of Mathematics., và Heinz-Otto Peitgen. Fractals for the Classroom: Strategic Activities. New York: Springer, 1999.

MLA citiranje

National Council of Teachers of Mathematics., và Heinz-Otto Peitgen. Fractals for the Classroom: Strategic Activities. New York: Springer, 1999.