Preliminary study of the profiles of the principal soil types of Wisconsin,
by Charles E. Kellogg.
- [Madison] Published by the state, 1930.
- 112 p. incl. pl. 1-5, maps, tables, diagrs. pl. 6 (fold. diagr.) 23 cm.
- Wisconsin. Geological and Natural History Survey. Bulletin Soil series, no. 77A; no. 54 .
- Wisconsin Geological and Natural History Survey. Bulletin ; no. 3. Wisconsin Geological and Natural History Survey. Bulletin ; no. 77A. .