Dyfyniad APA

Larsen, E. W., & Roots, B. I. (2005). Flower guide for holiday weekends in Eastern Canada and Northeastern U.S.A. NRC Press.

Dyfyniad Arddull Chicago

Larsen, Ellen Wynne, and Betty I. Roots. Flower Guide for Holiday Weekends in Eastern Canada and Northeastern U.S.A. Ottawa: NRC Press, 2005.

Dyfyniad MLA

Larsen, Ellen Wynne, and Betty I. Roots. Flower Guide for Holiday Weekends in Eastern Canada and Northeastern U.S.A. NRC Press, 2005.

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