00362nam a2200121Ia 450000500170000000800410001702000150005805000190007310000170009224500400010926000430014965000480019220251229084835.0251229s9999    xx            000 0 und d  a0198594690  aHD 9011.5 .B3   aBarker, J.W. 0aAgricultural marketing.cJ.W Barker  aLondonb Oxford University Press 1981.  a1. Farm Produce - Great Britain - Marketing