Soifer, A. (2020). Competitions for Young Mathematicians. 1st ed. 2017. Springer International Publishing.
استشهاد بنمط شيكاغوSoifer, Alexander. Competitions for Young Mathematicians. 1st Ed. 2017. Springer International Publishing, 2020.
MLA استشهادSoifer, Alexander. Competitions for Young Mathematicians. 1st Ed. 2017. Springer International Publishing, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.