Editore: Geological Society of America., 1953
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Good. ORIGINAL 1953 Reprint/Offprint of journal article; no covers; nicks along gutter where disbound from collected reprints volume; small foxing spots on (blank) verso of last page; o/w in good condition. Journal.