Dyfyniad APA

Various; Higley, W. K. Birds and Nature Vol. 11 No. 4 [April 1902] Illustrated by Color Photography.

Dyfyniad Arddull Chicago

Various; Higley, William Kerr. Birds and Nature Vol. 11 No. 4 [April 1902] Illustrated by Color Photography.

Dyfyniad MLA

Various; Higley, William Kerr. Birds and Nature Vol. 11 No. 4 [April 1902] Illustrated by Color Photography.

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