(1981). Science Library of Test Items. Volume Twenty-One. A Collection of Multiple Choice Test Items Relating Mainly to Physics, 2.
Chicago Style (17th ed.) CitationScience Library of Test Items. Volume Twenty-One. A Collection of Multiple Choice Test Items Relating Mainly to Physics, 2. 1981.
MLA (9th ed.) CitationScience Library of Test Items. Volume Twenty-One. A Collection of Multiple Choice Test Items Relating Mainly to Physics, 2. 1981.
Warning: These citations may not always be 100% accurate.