Dyfyniad APA

Scientific American. (2008). Scientific American (First edition.). Scientific American.

Dyfyniad Arddull Chicago

Scientific American. Scientific American. First edition. New York: Scientific American, 2008.

Dyfyniad MLA

Scientific American. Scientific American. First edition. Scientific American, 2008.

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