WEIR, WILBERT WALTER.
Soil science; its principles and practice. Including basic processes for managing soils and improving their fertility. (Lippincott's agricultural science series)
WEIR, WILBERT WALTER. Soil science; its principles and practice. Including basic processes for managing soils and improving their fertility. (Lippincott's agricultural science series) © 29May36; A95580. Marybelle J. Weir (W); 5May64; R337548.
Marybelle J. Weir|W