Book  (Sep 1993)  Page(s) 271.  Includes photo(s).
 
Manuela Large-flowered. Mathias Tantau 1968. Description... deep pink enlivened by a hint of salmon... It has never been popular outside Germany and the United Kingdom, where it was championed by the late Harry Wheatcroft. Parentage undisclosed.

Book  (Apr 1993)  Page(s) 353.  
 
Manuela® Hybrid Tea, medium pink, 1968, Tantau, Math. Description.

Book  (May 1992)  Page(s) 392.  
 
Manuela Hybrid Tea. Tantau (Germany) 1968... rich rosy-pink...

Book  (8 Mar 1970)  Page(s) 128.  
 
Manuela [One of Harry Wheatcroft's selections of the Best Hybrid Teas.] Germany, 1969, Tantau, unnamed seedling x 'Dr. A.J. Verhage'. Description... cherry pink, paling to rose pink...