Radtke Georg A. <br/><br/>
Budgerigars / 
Georg A. Radtke 
 - Hong Kong :  T. F. H. Publications,  1979 
<br/><br/> Originally published in German by Franckh'sche  Verlaghandlung, W.Keller & Co. Stuttgart/1978 under the title Wellensittiche - mein hobby - verso 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Budgerigar<br/>Parakeets<br/>Pets