Cita APA

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

Citación estilo Chicago

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

Cita MLA

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