Dyfyniad APA

Willis, A. I. (1898). Exercises for Arbor day (3d ed.). New England Pub. Co..

Dyfyniad Arddull Chicago

Willis, Annie I. Exercises for Arbor Day. 3d ed. Boston, Chicago: New England Pub. Co., 1898.

Dyfyniad MLA

Willis, Annie I. Exercises for Arbor Day. 3d ed. New England Pub. Co., 1898.

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