Earle E. Spamer

The Colorado River

Bibliography of the Grand Canyon and the lower Colorado River, 1540-1980

1981

Bibliography of the Grand Canyon and the lower Colorado River from 1540

1990

Bibliography of the Grand Canyon and the lower Colorado River, from 1540 (Grand Canyon Natural History Association monograph)

1993

The development of geological studies in the Grand Canyon

1989

The Development of Geological Studies in the Grand Canyon (Tryonia, No 17)

1989

The Grand Canyon fossil record

1992

Geology of the Grand Canyon

1983

A study of fossil vertebrate types in the Academy of Natural Sciences of Philadelphia

1995

The Lewis and Clark Herbarium of the Academy of Natural Sciences

The Lewis and Clark Herbarium of the Academy of Natural Sciences / Earle E. Spamer ... [et al.].

The Lewis & Clark herbarium