TY - BOOK AU - VERMA, Pankaj TI - Enquiry into the factors responsible for the establishment of brands of wheat herbicide (Isoproturon) marketed by different companies with special reference to the state of Punjab U1 - T 658.933.119.54 V50E PY - 1984/// CY - Ludhiana PB - PAU KW - HERBICIDES -- MARKETING -- PUNJAB KW - WHEAT -- WEED CONTROL ER -