editors, John Ragland and Rattan Lal ; organizing committee, John Ragland (1990), Uzo Mokwunye (1991) ; editorial committee, Kenneth Cassman ... [et al.] ; editor[s] in chief, Gary A. Peterson, P.S. Baenziger, Robert J. Luxmoore

American Society of Agronomy : Crop Science Society of America : Soil Science Society of America 1993 ASA special publication no. 56

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ed. by R. Lal and B.A. Stewart ; with contributions by J.K. Cronk ... [et al.]

Springer-Verlag c1992 Advances in soil science / edited by B.A. Stewart ; with contributions by D.W. Anderson ... [et al.] v. 17

: us , : gw

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edited by R. Lal and B.A. Stewart ; with contribution by I.A. Abrol ... [et al.]

Springer-Verlag c1990 Advances in soil science / edited by B.A. Stewart ; with contributions by D.W. Anderson ... [et al.] v. 11

: U.S.

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R. Lal, J.C. Moomaw and A. Fagbamiye

International Institute of Tropical Agriculture 1981

edited by D.J. Greenland and R. Lal

Wiley c1977 A Wiley-Interscience publication

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by F. R. Moormann, R. Lal and A. S. R. Juo

International Institute of Tropical Agriculture 1975 IITA technical bulletin no. 3

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