Book  (1990)  Page(s) 85.  Includes photo(s).
 
Prince Yugala (1923)... Velvety, deep maroon-red flowers...

Book  (1936)  Page(s) 765.  
 
Yugala, Prince (HT) F. Cant 1923; brownish crimson, velvety blackish purple reflexes, medium size, double, fine form, high-centered, lasting, solitary, fragrance 3/10, continuous bloom, few prickles, growth 6/10, bushy.

Magazine  (Oct 1927)  Page(s) 89.  
 
Roses nouvelles de 1923.... Rosiers hybrides de thé ...
Prince Yugula (Frank Cant). - Fleur d'un coloris riche, marron foncé mélangé de rouge écarlate cramoisi ne violaçant pas.

Book  (1927)  Page(s) 142.  
 
The Proof of the Pudding.
'Prince Yugala' HT. (F. Cant, 1923).  ARA 1923.  ....is darker than either 'Chateau de Clos Vougeot' or 'Friederichsruhe'....