Παραπομπή APA

Butterworth and. (1973). Butterworth and Chebysher digital filters: Tables for their design. Elsevier.

Παραπομπή Chicago Style

Butterworth and. Butterworth and Chebysher Digital Filters: Tables for Their Design. Amsterdam: Elsevier, 1973.

Παραπομπή MLA

Butterworth and. Butterworth and Chebysher Digital Filters: Tables for Their Design. Elsevier, 1973.