Dyfyniad APA

Folsom, A. (1994). The day after tomorrow. Warner Books.

Dyfyniad Arddull Chicago

Folsom, Allan. The Day After Tomorrow. New York: Warner Books, 1994.

Dyfyniad MLA

Folsom, Allan. The Day After Tomorrow. Warner Books, 1994.

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