Παραπομπή σε μορφή APA (7η εκδ.)

Gupta, V., & Tachev, G. (2017). Approximation with Positive Linear Operators and Linear Combinations. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gupta, Vijay, και Gancho Tachev. Approximation with Positive Linear Operators and Linear Combinations. Cham: Springer International Publishing : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gupta, Vijay, και Gancho Tachev. Approximation with Positive Linear Operators and Linear Combinations. Springer International Publishing : Imprint: Springer, 2017.