Gaya APA
ASTM, . (1997).
ASTM E 1502 - 92 Standard guide for use of freezing point cells for reference temperatures .
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ASTM.
Gaya MLA
ASTM, .
"ASTM E 1502 - 92 Standard guide for use of freezing point cells for reference temperatures".
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ASTM,
1997.
Diorama.