LeGrand, H. E. 1944- Drifting continents and shifting theories : the modern revolution in geology and scientific change / H.E. LeGrand. - Cambridge : Cambridge University Press, 1988. - vi, 313 p. : ill. ISBN: 0521322103 LCCN: 44041649 Subjects--Topical Terms: Continental drift.Science--Philosophy.Science--Methodology.Continental drift