Dyfyniad APA

Smith, P. G. (1991). Developing products in half the time. New York: Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Smith, Preston G. Developing Products in Half the Time. New York: Van Nostrand Reinhold, 1991.

Dyfyniad MLA

Smith, Preston G. Developing Products in Half the Time. New York: Van Nostrand Reinhold, 1991.

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