Παραπομπή APA

Asthana,B.N. (1973). Statistical methods for economics. Chaithanya publishing.

Παραπομπή Chicago Style

Asthana,B.N. Statistical Methods for Economics. Allahabad: Chaithanya publishing, 1973.

Παραπομπή MLA

Asthana,B.N. Statistical Methods for Economics. Chaithanya publishing, 1973.