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- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Nov. 21, 1939
- SuDoc number:
- C 13.16:574
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Nov. 15, 1939
- SuDoc number:
- C 13.16:573
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Nov. 10, 1939
- SuDoc number:
- C 13.16:572
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Oct. 3, 1939
- SuDoc number:
- C 13.16:571
- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- Oct. 1, 1939
- SuDoc number:
- C 13.16:256 a/pt.1 B/amdt.1
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Sept. 30, 1939
- SuDoc number:
- C 13.16:569
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Sept. 5, 1939
- SuDoc number:
- C 13.16:567
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Aug. 30, 1939
- SuDoc number:
- C 13.16:565
- Corporate/Agency Authors:
- National Bureau of Standards
- Publisher:
- National Bureau of Standards
- Date:
- Aug. 9, 1939
- SuDoc number:
- C 13.16:562
- Corporate/Agency Authors:
- National Bureau of Standards and Commerce Department
- Publisher:
- National Bureau of Standards
- Date:
- July 15, 1939
- SuDoc number:
- C 13.16:560