Dyfyniad APA

Harold William Rickett. (1965). Wild flowers of the United States. Vol.1 - P.1. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Harold William Rickett. Wild Flowers of the United States. Vol.1 - P.1. New York: McGraw-Hill, 1965.

Dyfyniad MLA

Harold William Rickett. Wild Flowers of the United States. Vol.1 - P.1. New York: McGraw-Hill, 1965.

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