Productive soils
By: [by] Wilbert Walter Weir. Edited by R. W. Gregory.
Contributors: Gregory, Raymond William, 1893- ed.
Publisher: J.B. Lippincott company
Published: 1946
Place of publication: Chicago; Philadelphia [etc.]
Language: eng
Number of pages: 325
Subjects: Soils.
Notes: On cover: Revised.
"Fifth edition."