Chemical abstracts (6th collective index 1957-61) - Washington: American Chemical Society, 1961 - v.p.

Lib/Misc/78/1983-84(wdr no.2893;acc.no.1817)
Lib/Misc/78/1983-84(wdr no.2716-27;acc.no.1818-29)
Lib/Misc/78/1983-84(wdr no.2728-29;acc.no.2546-47)

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