Thirty-fifth anniversary field conference :
Guildbook : panhandle of Oklahoma, northeastern New Mexico, South-central Colorado /
Oklahoma City Geological Society.

APA Citation

Oklahoma City Geological Society. (1956). Thirty-fifth anniversary field conference: Guildbook : panhandle of Oklahoma, northeastern New Mexico, South-central Colorado. Oklahoma City: The Society.

MLA Citation

Oklahoma City Geological Society. Thirty-fifth Anniversary Field Conference: Guildbook : Panhandle of Oklahoma, Northeastern New Mexico, South-central Colorado. Oklahoma City: The Society, 1956.

Warning: These citations may not always be complete (especially for serials).