APA (7th ed.) Citation

Radtke, G. A. (1988). Budgerigars. T.F.H Publications,Inc..

Chicago Style (17th ed.) Citation

Radtke, Georg A. Budgerigars. New Jersey: T.F.H Publications,Inc., 1988.

MLA (9th ed.) Citation

Radtke, Georg A. Budgerigars. T.F.H Publications,Inc., 1988.

Warning: These citations may not always be 100% accurate.