A catalogue of the Mesozoic and Cenozoic plants of North America
By: by F. H. Knowlton.
Series: U. S. Geological survey. Bulletin 696
Publisher: Govt. print. off.
Published: 1919
Place of publication: Washington
Language: eng
Number of pages: 815
Subjects: Paleobotany
Notes: At head of title: Department of the interior.