@book{17897,
	author = {Leet, L. Don},
	title = {Earth waves.},
	publisher = {Harvard University Press,},
	year = {1950.},
	series = {Harvard monographs in applied science ;},
	address = {Cambridge,},
	note = {"Much of the material was assembled ... for presentation as a course of eight lectures on 'Applications of seismological techniques to engineering problems' for the Lowell Institute of Boston in the autumn of 1946."}
}