Dyfyniad APA

Barnes, H. F. (1948). Gall midges of economic importance. Crosby lockwood & sons ltd.

Dyfyniad Arddull Chicago

Barnes, H F. Gall Midges of Economic Importance. London: Crosby lockwood & sons ltd, 1948.

Dyfyniad MLA

Barnes, H F. Gall Midges of Economic Importance. Crosby lockwood & sons ltd, 1948.

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