Notes on earth fissures in Southern Arizona,
Robinson, G. M. 1925-
Notes on earth fissures in Southern Arizona, by G.M. Robinson and D.E. Peterson. - Washington, 1962. - iii, 7 p. illus., fold. map (in pocket) profile. 27cm.
Bibliography: p. 7.
gs 63000222
Geology, Structural.
Physical geography--Arizona.
QE75 / .C5 no. 466
Notes on earth fissures in Southern Arizona, by G.M. Robinson and D.E. Peterson. - Washington, 1962. - iii, 7 p. illus., fold. map (in pocket) profile. 27cm.
Bibliography: p. 7.
gs 63000222
Geology, Structural.
Physical geography--Arizona.
QE75 / .C5 no. 466