Dyfyniad APA

Haggard, H. W. (1937). Staying young beyond your years. Funk and Wagnalls company.

Dyfyniad Arddull Chicago

Haggard, Howard Wilcox. Staying Young Beyond Your Years. New York: Funk and Wagnalls company, 1937.

Dyfyniad MLA

Haggard, Howard Wilcox. Staying Young Beyond Your Years. Funk and Wagnalls company, 1937.

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