Dyfyniad APA

Christian, G. Down the long wing: Study of bird migration.

Dyfyniad Arddull Chicago

Christian, Garth. Down the Long Wing: Study of Bird Migration.

Dyfyniad MLA

Christian, Garth. Down the Long Wing: Study of Bird Migration.

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