Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.