TY - BOOK AU - AU - Harris,Miles F. ED - American Geological Institute. ED - Earth Science Curriculum Project. TI - Investigating the earth SN - 0395138329 AV - GB54.5.M37 1981 PY - 1981/// CY - Atlanta PB - Houghton Mifflin KW - Earth sciences N1 - "Sponsored by the American Geological Institute and based on the original Earth Science Curriculum Project."; Includes bibliographies ER -