Παραπομπή APA

Richardson, H. W. (1972). Input-output and regional economics. Widenfeld and Nicholson.

Παραπομπή Chicago Style

Richardson, Harry W. Input-output and Regional Economics. London: Widenfeld and Nicholson, 1972.

Παραπομπή MLA

Richardson, Harry W. Input-output and Regional Economics. Widenfeld and Nicholson, 1972.