Singh, N.B. et al. 2013. Improvement of <I>Populus Deltoides</I> Bartr. Ex Marsh. in India - Provenance Variation and Intraspecific Breeding. Indian Forester. 139, 3 (Mar. 2013), 222–227. DOI:https://doi.org/10.36808/if/2013/v139i3/31165.