L. D. Spivey

The effect of texture on strength of southeastern coastal plain soils

W. Busscher, R. B. Campbell, L. D. Spivey, 1986 .

Sustainable agriculture in developing countries: constraints, challenges, and choices.

H. Eswaran, S. M. Virmani, L. D. Spivey, 2015 .

Estimation of soil strength properties for critical rooting conditions

W. Busscher, R. B. Campbell, L. D. Spivey, 1987 .