APA استشهاد

Shashkin, Y. .. (1991). Fixed points. Universities Press (India).

استشهاد بنمط شيكاغو

Shashkin, Yu .A. Fixed Points. Hyderabad: Universities Press (India), 1991.

MLA استشهاد

Shashkin, Yu .A. Fixed Points. Universities Press (India), 1991.