Παραπομπή APA

Frucht, W. (1999). Imaginary numbers: An anthology of marvelous mathematical stories. John Wiley & Sons.

Παραπομπή Chicago Style

Frucht, Williamed. Imaginary Numbers: An Anthology of Marvelous Mathematical Stories. New York: John Wiley & Sons, 1999.

Παραπομπή MLA

Frucht, Williamed. Imaginary Numbers: An Anthology of Marvelous Mathematical Stories. John Wiley & Sons, 1999.