Book  (Aug 2002)  Page(s) 48.  
 
Houston
Not rated

Book  (2001)  Page(s) 50.  
 
Houston Hybrid Tea, deep yellow, 1980. Not rated.

Book  (Apr 1993)  Page(s) 252.  
 
Houston Hybrid Tea, deep bright yellow, 1980, 'Summer Sunshine' x Seedling; Weeks, O.L. Description.