Editore: GPO, Washington, D.C., 1965
Da: Hoffman Books, ABAA, IOBA, Columbus, OH, U.S.A.
Softcover. Condizione: Very Good. With special emphasis on study of Lake Wohlford, California. USGS 1965. Wrappers, very good condition (rubber stamp on cover).
Editore: GPO, Washington, D.C., 1965
Da: Hoffman Books, ABAA, IOBA, Columbus, OH, U.S.A.
Softcover. Condizione: Very Good. With special emphasis on study of Lake Wohlford, California. USGS 1965. Wrappers, very good condition (rubber stamp on cover).
Editore: GPO, Washington, D.C., 1968
Da: Hoffman Books, ABAA, IOBA, Columbus, OH, U.S.A.
Softcover. Condizione: Very Good. USGS 1963 Wrappers, very good condition (rubber stamp on cover).