00674cam a22002291 4500 gs 64000201 DLC 20260227111414.0 840911s1964 dcu f000 0 eng c gs 64000201 (OCoLC)11143144 U.S. Geol. Survey. Libr. CLS CLS DLC premarc QE75 .C5 no. 487 McGill, John T. Growing importance of urban geology, by John T. McGill. Washington, 1964. 4 p. 27 cm. [United States] Geological Survey. Circular 487 City planning United States. Geology United States. 29833 29833