Bryson, Reid A. Climates of hunger : mankind and the world's changing weather / Reid A. Bryson and Thomas J. Murray. - Madison : University of Wisconsin Press, 1977. - xv, 171 p. : ill. ; 23 cm. Bibliography : p. 159-164 ISBN: 020007370X 8.95 Subjects--Topical Terms: Climatic changesPaleoclimatologyDroughts