Sons of the earth : the geologist's view of history /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1930

Enough and to spare ; Mother Earth can nourish every man in freedom /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1944

Crusade for life.

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1949

Source book in geology, 1900-1950 /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1967

The earth beneath us /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1964

The permissive universe /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1986

Old mother earth /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1928

A source book in geology, 1400-1900 /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1970

A source book in geology /

by Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1939

Physiography and quaternary geology of the San Juan Mountains, Colorado /

by Atwood, Wallace Walter, 1872-1949, Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
Published 1932

Adult education : a dynamic for democracy /

by Hewitt, Dorothy, 1897-
Published 1937

Physiography and quaternary geology of the San Juan Mountains, Colorado /

by Atwood, Wallace Walter, 1872-1949
Published 1932