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- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- July 1961
- SuDoc number:
- NS 1.3/2:14
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- June 1961
- SuDoc number:
- NS 1.11:28
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- June 1961
- SuDoc number:
- NS 1.16:10
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- May 1961
- SuDoc number:
- NS 1.16:9
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Apr. 1961
- SuDoc number:
- NS 1.10/2:958
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [Apr. 1961.]
- SuDoc number:
- NS 1.12:961-62
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Apr. 1961
- SuDoc number:
- NS 1.11:27
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Mar. 20, 1961
- SuDoc number:
- NS 1.19:961
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Mar. 1961
- SuDoc number:
- NS 1.2:Ed 8/3/961
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Feb. 1961
- SuDoc number:
- NS 1.11:26