Guide to Serpent Mound.
APA Citation
Greenman, E. Frank. (1952). Guide to Serpent Mound. Rev. Columbus: Ohio State Archaeological and Historical Society.
MLA Citation
Greenman, Emerson Frank, 1895-1973. Guide to Serpent Mound. Rev. Columbus: Ohio State Archaeological and Historical Society, 1952.
Warning: These citations may not always be complete (especially for serials).