ID:DA06571252
Welles, Samuel Paul
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by S.P. Welles and Richard Estes
University of California Press 1969 University of California publications in geological sciences v. 84
Available at 2 libraries
by S.P. Welles and John Cosgriff
University of California Press 1965 University of California publications in geological sciences v. 54
by S.P. Welles
University of California Press 1962 University of California publications in geological sciences v. 44, no. 1
