Dyfyniad APA

Feldman, A., & Ford, P. (1989). Scientists and inventors.

Dyfyniad Arddull Chicago

Feldman, Anthony, and Peter Ford. Scientists and Inventors. London, Bloomsburg Books, 1989.

Dyfyniad MLA

Feldman, Anthony, and Peter Ford. Scientists and Inventors. 1989.

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