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*US BUR CENS, 1930, 1927 CENS MAN
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*US BUR CENS, 1927, CENS MAN
[14]
WOOLF, 1930, TEXTILE WORLD, V77, P645
[15]
1921, ADV GEOGRAPHY, P94
[16]
1930, J IND ENG CHEM, V22, P433