1. A.R.S. 1980	American Rhododendrons V.1&2
2. Barber, Pete & Phillips, Lucas	The Rothchild Rhododendrons
3. Bloom, Adrian	Conifers in Your Garden
4. Chadwell, C.A.	Kashmir Botanical Expedition
5. Coyier, D.W., Roane, M.	Rhododendrons & Azaleas Diseases
6. Cox, Peter	Dwarf Rhododendrons
7. Cox, Peter, A.	Larger Species of Rhododendrons
8. Cox, Peter, A	Cox Guide to choosing Rhododendrons.
9. Cox, Peter, A & Kenneth N	Encyclopedia of Rhododendron Species.
10. Davidian, H.H.	Rhododendron Species, Lepidotes, V.1
11. Grace, Julie	Ornamental Conifers.
12. Greer, Harold E.	Greer's Guide to available Rhododendrons
13. Jaynes, Richard, A.	The Laurel Book 2
14. Kofraneck, A & Larson, Roy	Growing Azaleas Commercially
15. La Croix, I. F.	Rhododendrons and Azaleas.
16. Lee, Frederic P.	The Azalea Book.
17. Livingston, Ph. & West, F.	Hybrids & Hybridizers.
18. Leach, David G.	Rhododendrons of the World.
19. Proudly, Brian & Valerie	Heathers in colour.
20. R.H.S. London	The Rhododendron Handbook.
21. R.H.S. London	Rhododendrons with Magnolias and Camelias,
	86-87; 87-88; 88-89.
22. Sally, Homer & Greer, H.	Rhododendron Hybrids
23. Street, John	Rhododendrons.
24. Species Foundation	Rhododendrons of China
25. Vetrees, J. D.	Japanese Maples.
26. Washington State U.	How to identify Rhododendron and Azalea Problems
27. Van Veen, Ted	Rhododendrons in America.
28. Welsh, Humphrey J.	Manual of Dwarf Conifers.
29.	Wild flowers and special Gardens.
30.	Great American Azaleas
31.	Encyclopedia of Rhododendron Hybrids.