Dyfyniad APA

Clark, J. A., Fitzpatrick, F. L., & Smith, E. L. (1944). Science on the march. Houghton Mifflin company.

Dyfyniad Arddull Chicago

Clark, John Anson, Frederick Linder Fitzpatrick, and Edith Lillian Smith. Science on the March. Boston, New York [etc.]: Houghton Mifflin company, 1944.

Dyfyniad MLA

Clark, John Anson, et al. Science on the March. Houghton Mifflin company, 1944.

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