Dyfyniad APA

Various. Birds, Illustrated by Color Photography, Vol. 2, No. 1 July 1897.

Dyfyniad Arddull Chicago

Various. Birds, Illustrated by Color Photography, Vol. 2, No. 1 July 1897.

Dyfyniad MLA

Various. Birds, Illustrated by Color Photography, Vol. 2, No. 1 July 1897.

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