'Simulation of plant density effects on maize yield as influenced by water and nitrogen limitations' by B.A. Keating, B.M. Wafula and R.L. McCown, 1988 Unit ID: 54 Date: 1988
'Social aspects of the Magarini Settlement Scheme in Kenya' (seminar paper, Australian Development Assistance Bureau), Sept. 1982 Unit ID: 32 Date: Sept. 1982