Παραπομπή APA

Lehto, O., & Virtanen, K. I. (1973). Quasiconformal mappings in the plane .-2nded (2nd ed.). Springer.

Παραπομπή Chicago Style

Lehto, Olli, και K. I. Virtanen. Quasiconformal Mappings in the Plane .-2nded. 2nd ed. Berlin, Heidelberg, New York: Springer, 1973.

Παραπομπή MLA

Lehto, Olli, και K. I. Virtanen. Quasiconformal Mappings in the Plane .-2nded. 2nd ed. Springer, 1973.