Principles of stratigraphy /
Roy R. Lemon.
APA Citation
Lemon, R. R. (1990). Principles of stratigraphy. Columbus: Merrill Pub. Co..
MLA Citation
Lemon, Roy R. Principles of Stratigraphy. Columbus: Merrill Pub. Co., 1990.
Warning: These citations may not always be complete (especially for serials).