A Sphenopsid from the Lower Devonian of Wyoming
Series: Botanical Museum leaflets, Harvard University -- v. 7, no. 2
Publisher: Harvard University
Published: 1938
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 34
Notes: Reprinted from: Botanical Museum Leaflets. Harvard University. 1938. 7(2): 21-34.

Includes bibliographical references : p. 34.