The fossils and stratigraphy of the Middle Devonic of Wisconsin,
by Herdman F. Cleland.
- Madison, Wis., Published by the state, 1911.
- vi, 222 p. front. (fold. map) illus., liii (i. e. 55) pl., map. 25 cm.
- Wisconsin. Geological and natural history survey. Bulletin no. 21. Scientific series no. 6 .
- Wisconsin Geological and Natural History Survey. Bulletin ; no. 21. Wisconsin Geological and Natural History Survey. Scientific series ; no. 6. .
Plates i-liii each accompanied by leaf with descriptive letterpress.