McCaughey, W J (William John) 1882 19 books & textbook
The Microscopic Determination of Soil-forming Minerals; Volume no.91
McCaughey, W J (William John) 1882-19 Fry, William H (William Henry) 1888-19 United States Dept of Agriculture
Wentworth Press /2016-08-28 Paperback / 114 Pages
isbn-10: 1373167580 / isbn-13: 9781373167583
The Color of Soils; Volume no.79
Robinson, W O (William Orrin) B 1884 McCaughey, W J (William John) 1882-19 United States Dept of Agriculture
Wentworth Press /2016-08-25 Paperback / 34 Pages
isbn-10: 1361549955 / isbn-13: 9781361549957
