Dahlia Doctor Research Library: Propagating Dahlia Cuttings
Steve Lloyd
Dahlia Doctor Research Library: Tuberous Root Formation and Development
The Influence of Duration of Illumination and Spectral Composition of Light on the Regenerative Activity of the Meristem of the Shoot Growing Point
E. I. Zaar
Obtaining Twin Plants In Dahlias
G. I. Rodionenko and E. I. Zaar
Norton's "Seven Thousand Dahlias in Cultivation"
Historic Dahlia Archives
Parrella's 1948 Dahlia Catalogue
Propagating Dahlias by Vegetative Grafting
Catalog of Grand Prix Dahlias 1921
Catalog of Floristan Gardens 1948
Dahlias For the Home (1923)
Texnier's Le Dahlia (1909)
Catalog of Far West Dahlia Gardens 1939
