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.
Lua i Stíl Chicago (17ú heag.)Diamond, Harriet, agus 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.
Lua MLA (8ú heag.)Diamond, Harriet, agus 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.
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