00801cam a22002531 4500 gs 52000180 DLC 20260227111359.0 821124s1951 xx abf 000 0 eng gs 52000180 (OCoLC)16765031 DLC OrPS DLC premarc f-nr--- S471.N7 G7 Grove, A. T. (Alfred Thomas) Land use and soil conservation in parts of Onitsha and Owerri provinces. [Zaria, Gaskiya Corp.] 1951. 79 p. illus., plates, maps (part col., 1 in pocket) 25 cm. Agriculture Nigeria. Physical geography Nigeria. Soil conservation Nigeria. Geological Survey of Nigeria. Bulletin ; no. 21. 28653 28653