Παραπομπή APA

Hellwig, Z. (1953). Linear regression and its application to economics. Pergamon.

Παραπομπή Chicago Style

Hellwig, Zdzilaw. Linear Regression and Its Application to Economics. Oxford: Pergamon, 1953.

Παραπομπή MLA

Hellwig, Zdzilaw. Linear Regression and Its Application to Economics. Pergamon, 1953.