1. Sulfide minerals in Seelyville Coal III. Chinook Mine, Indiana;Boctor;Miner. Deposits (Berl),1976
2. Sulfur in peat-forming systems of the Okefenokee Swamp and Florida Everglades: Origins of sulfur in coal;Casagrande;Geochim. Cosmochim. Acta,1976
3. Incorporation of sulfur in coal precursors;Casagrande;Geochim. Cosmochim. Acta,1980
4. Petrology of some peats of southern Florida with special reference to the origin of coal;Cohen,1968
5. An allochthonous peat deposit from southern Florida;Cohen;Geol. Soc. Am. Bull.,1970