WEIR, WILBERT WALTER.
Productive soils; the fundamentals of successful soil management and profitable crop production. Edited by R. W. Gregory. 4th ed.
WEIR, WILBERT WALTER. Productive soils; the fundamentals of successful soil management and profitable crop production. Edited by R. W. Gregory. 4th ed. © 10Jan38; A114100. Mrs. Wilbert W. Weir (W); 3Dec65; R375803.
Mrs. Wilbert W. Weir|W