Geology of to-day
Gregory, J. W.
Geology of to-day a popular introduction in simple language, by J.W. Gregory ... with 58 illustrations & diagrams. - Philadelphia, London, J.B. Lippincott; Seeley, Service, 1915. - (xv, 17-327 p. ; 22 cm.
Printed in Great Britain.
Electronic reproduction.
HathiTrust Digital Library,
2010.
Geology.
Geology of to-day a popular introduction in simple language, by J.W. Gregory ... with 58 illustrations & diagrams. - Philadelphia, London, J.B. Lippincott; Seeley, Service, 1915. - (xv, 17-327 p. ; 22 cm.
Printed in Great Britain.
Electronic reproduction.
HathiTrust Digital Library,
2010.
Geology.