na INLIS000000000004971 20240724093929 0010-0223000025 An Introduction to Agricultural Economics ROSS, Robert C. - vii, 414 hlm. : ilus. ; 21 cm New York : McGraw-Hill Book Company, 1951 338.1 338.1 Ros a - Agricultural 240724 0 ind c.2(1125/SPP/Pb/-) c.1(1124/SPP/ha/-)