Book  (1936)  Page(s) 768.  
 
Zika (hybrid rugosa) Prof. Hansen 1927; R. rug. sibirica X Anna de Diesbach X Tetonkaha; mother-of-pearl-pink, semi-double, fragrance 5/10, otherwise like Zani.

Book  (1927)  Page(s) 227-228.  
 
Contains a lengthy listing of Prof. Hansen's roses, including Zika, noting description and parentage of each.

Book  (1927)  Page(s) 53.  
 
Zika Rose - Introduced 1927. Pedigree: Seed parent, Rosa rugosa, Siberian form x Anna de Diesback; pollen parent, Tetonkaha. Flowers, semi-doouble; color, fine shell pink; fragrant.