Agrawal, S.B., Singh, A. and Rathore, D. 2004. INTERACTIVE EFFECT OF AIR POLLUTION AND NUTRIENTS ON BIOCHEMICAL PROCESSES AND YIELD OF WHEAT GROWN IN PERI-URBAN AREAS OF ALLAHABAD CITY. Ecoprint: An International Journal of Ecology. 11, 1 (Jan. 2004). DOI:https://doi.org/10.3126/eco.v11i1.139.