Book  (1993)  Page(s) 54.  Includes photo(s).

Book  (1992)  Page(s) 74.  
 
(AUSwalker) Large-flowered shrub; yellow, deeper in centre; blooms large, double, opening flat; growth upright, 42 x 42 in (1.1 x 1.1 m); good scent. Austin 1991. Modern Shrub

Website/Catalog  Page(s) 20.  Includes photo(s).