Diamond, H., & Dutwin, P. (1981). GED, test 3: The science test : how to prepare for the high school equivalency examination (Rev. to include the new discrete items.). Contemporary Books.

Diamond, Harriet, and Phyllis Dutwin. GED, Test 3: The Science Test : How to Prepare for the High School Equivalency Examination. Rev. to include the new discrete items. Chicago: Contemporary Books, 1981.

Diamond, Harriet, and Phyllis Dutwin. GED, Test 3: The Science Test : How to Prepare for the High School Equivalency Examination. Rev. to include the new discrete items. Contemporary Books, 1981.