New echinoderms from the Maquoketa beds of Fayette County, Iowa
By: by Arthur Ware Slocom and August F. Foerste
Publisher: State of Iowa
Published: 1919
Place of publication: Des Moines
Language: eng
Number of pages: 384
Notes: Cover serves as title-page.

"From Iowa Geological Survey, Vol. XXIX, Annual Reports 1919 and 1920."