Dyfyniad APA

(1980). Aphides of North-East India and Bhutan. The Zoological society.

Dyfyniad Arddull Chicago

Aphides of North-East India and Bhutan. Calcutta: The Zoological society, 1980.

Dyfyniad MLA

Aphides of North-East India and Bhutan. The Zoological society, 1980.

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