Henderson, M. R. (Murray Ross),  1899- <br/><br/>
Malayan orchid hybrids / 
M. R. Henderson and G. H. Addison. 
 - Singapore :  Govt. Print. Off.,  1961. 
 - 191 p. :  ill. ;  27 cm. 
<br/><br/> first supplement. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orchids--Singapore--Varieties.<br/>Orchids--Varieties.--Malaysia<br/>Orchid culture.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Singapore--Orchids--Varieties.<br/>Malaysia--Orchids--Varieties.