1. Organic constituents of fossils;Abelson;Carnegie Inst. Yearb.,1954
2. Paleobiochemistry;Abelson;J. Amer. Sci.,1956
3. Organic constituents of fossils;Abelson;Treatise on Marine Ecology and Paleo-ecology,1957
4. Organic constituents of fossils;Abelson;Mem. Geol. Soc. Amer.,1957
5. Organic geochemistry: kerogen;Abelson;Carnegie Inst. Yearb.,1959