Publicado por Geological Society of America., 1952
Librería: Eryops Books, Stephenville, TX, Estados Unidos de America
No Binding. Condición: Good. ORIGINAL 1952 Reprint/Offprint of journal article; includes 8 folded plates (complete for this publication); no covers; small chips along gutter where disbound from collected reprints volume; nicks on fore-edge ofa couple of leaves; o/w in good condition. Journal.