APA استشهاد

Soifer, A. (2009). How does one cut a triangle? .- 2nd ed. (2nd ed.). Springer.

استشهاد بنمط شيكاغو

Soifer, Alexander. How Does One Cut a Triangle? .- 2nd Ed. 2nd ed. New York ; London: Springer, 2009.

MLA استشهاد

Soifer, Alexander. How Does One Cut a Triangle? .- 2nd Ed. 2nd ed. Springer, 2009.