00348nam a22001337a 4500003000400000020001800004082002000022100002000042245003900062250000900101260005100110300001000161650004300171OSt  a9788120322202  a380.141bKOH/MA  aKolis,L Richard  aMarketing of agricultural products  a9ed.  aNew delhi bPHI Learning private limitedc2002  a544p.  aThe framework of the marketing problem