Stevens, J.G.R. Shell Agriculture. No 2(1988) - 13(1992) - England Stevens, J.G.R. 1988 - 462p Stevens, J.G.R.: Shell Agriculture. No 2(1988) - 13(1992). England. Stevens, J.G.R., 1988.--(630.5STE) ENGLISH Subjects--Topical Terms: AGRICULTURE Dewey Class. No.: 630.5 / SA