Chemical Literature, Volume 21, Number 1, Spring 1969 Page: 3
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:Srn. 16. 3
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American Chemical Society. Division of Chemical Literature. Chemical Literature, Volume 21, Number 1, Spring 1969, periodical, Spring 1969; Philadelphia, Pennsylvania. (digital.library.unt.edu/ark:/67531/metadc5711/m1/3/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .