Book  (2010)  Page(s) 269.  Includes photo(s).
 
R. pendulina 'Mount Everest', hybrid of unknown origin, large, flowers in May, rose-pink with white center, scentless. Impressive large bush. Needs room so place carefully - good in groupings, as a high rose hedge and as a specimen.

Book  (2007)  Page(s) 348.  
 
Mount Everest, S, [hybrid of R. pendulina], .... description

Book  (2004)  Page(s) 44.  
 
Boursault roses...Mount Everest is an improved form of R. pendulina, with larger pink blooms, It is more vigorous than the species from which it descends.

Book  (1978)  Page(s) 168.  
 
MOUNT EVEREST - Undoubtedly an improved form or hybrid of R . pendulina , although the originator and parentage are unrecorded . It exceeds the type in vigor , and produces larger blossoms and fruits .

Magazine  (1969)  Page(s) 54.  
 
Among the progeny of the cross R. canina x R. pendulina 'Everest' a plant with 77 chromosomes was found; the expected number is 49.

Magazine  (1964)  Page(s) 100.  
 
...the double forms 'Mount Everest' and R. pendulina 'Plena' ....

Book  (1964)  Page(s) 71.  
 
rosa 'Mount Everest', 1957

Magazine  (1960)  Page(s) 61.  
 
Nærmest opptil Rosa eglanteria i nypeavling av sortene kom Mosvig en variant av Rosa canina og ' Mount Everest ... 

Translation:
Closest to Rosa eglanteria in rosehip cultivation of the varieties came Mosvig a variant of Rosa canina and 'Mount Everest' ...

Book  (1958)  Page(s) 259.  
 
Mount Everest. S. Form or hybrid of R. pendulina, with larger fls. and fr. and greater vigor. 

Magazine  (1956)  Page(s) 127.  
 
'Mount Everest'