Παραπομπή APA

Stroyan, K., K.D Stroyan, & Luxemburg, W. (1976). Introduction to the theory of infinitesimals. Academic press.

Παραπομπή Chicago Style

Stroyan, K.D, K.D Stroyan, και W.A.J Luxemburg. Introduction to the Theory of Infinitesimals. New York: Academic press, 1976.

Παραπομπή MLA

Stroyan, K.D, et al. Introduction to the Theory of Infinitesimals. Academic press, 1976.