Book  (2005)  Page(s) 23.  
 
location G:218, Blanche Neige, Grootendorst 1946, floribunda, white, medium size, double, medium height

Book  (19 Apr 2000)  Page(s) 52.  
 
'BLANCHE NEIGE', Pol, white, 1929; Koster

Book  (19 Apr 2000)  Page(s) 622.  
 
'White Dick Koster', Pol, 1946; Grootendorst, F. J.; (Cavriglia)

Book  (Jun 1992)  Page(s) 251.  
 
White Koster Polyantha. Introducer and date unknown. Presumably a sport from 'Margo Koster' or 'Dick Koster'. White.

Book  (1986)  Page(s) 174.  
 
'Snövit' ('Witte Dick Koster')

Website/Catalog  (1983)  Page(s) 20.  Includes photo(s).
 
KOSTER BLANC : blanc pur

Website/Catalog  (1982)  Page(s) 20.  Includes photo(s).
 
Koster Blanc

Book  (1976)  Page(s) 22.  
 
location 41, Blanche Neige (Grootendorst 1946) Fl., white, medium size, double, medium tall

Website/Catalog  (1975)  Page(s) 17.  
 
WHITE KOSTER, blanc pur

[no longer listed in 1977, but again in 1982]