APA استشهاد

Federer, W. T. (1955). Experimental design: Theory and application. Oxford &IBH.

استشهاد بنمط شيكاغو

Federer, Walter Theodore. Experimental Design: Theory and Application. New Delhi: Oxford &IBH, 1955.

MLA استشهاد

Federer, Walter Theodore. Experimental Design: Theory and Application. Oxford &IBH, 1955.