text Toronto University of Michigan Press 1959 Ind 191 p. : ill. ; 26 cm. 191 p. : ill. ; 26 cm. Index: p. 189-191 STUMPFF, Karl EARTH 525 525STUp INLIS000000000008403 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)