00842cam a22002771 4500 2648692 BD-DhUL 20151230095336.0 701012s1968 mauabc b 000 0 eng 68021987 DLC DLC DLC BD-DhUL QB601 .W6 1968 523.4 WHE Whipple, Fred L. (Fred Lawrence), 1906-2004. Earth, moon, and planets / Fred L. Whipple. 3rd ed. Cambridge, Mass. : Harvard University Press, 1968. viii, 297 p. : ill., maps ; 25 cm. The Harvard books on astronomy Edition for 1981 published under title: Orbiting the sun. Bibliography: p. [284]-285. Planets. Earth (Planet) Moon. ddc REF 44323 44323 0 0 ddc 0 523_400000000000000_WHE 1 REF 72618 DUSL DUSL REF 1970-01-10 523.4 WHE A64854 2015-12-30 2015-12-30 REF