Παραπομπή APA

Condon, R. J. (1978). Data processing system analysis and design. Reston.

Παραπομπή Chicago Style

Condon, Robert J. Data Processing System Analysis and Design. U S A: Reston, 1978.

Παραπομπή MLA

Condon, Robert J. Data Processing System Analysis and Design. Reston, 1978.