Singh, M., Singh, O.P. and Singh, M.P. 2013. BIOMASS AND PRODUCTIVITY OF WEEDS IN A FALLOW PERIOD AT GUJAR TAL MARGIN, INDIA. Ecoprint: An International Journal of Ecology. 18, (Dec. 2013), 63–70. DOI:https://doi.org/10.3126/eco.v18i0.9412.