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- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [1969.]
- SuDoc number:
- NS 1.21:968
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- 1969
- SuDoc number:
- NS 1.28:69-3
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Dec. 1968
- SuDoc number:
- NS 1.11/2:(nos.)
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [Nov. 1968]
- SuDoc number:
- NS 1.13:P 93/961-65
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [Oct. 1968.]
- SuDoc number:
- NS 1.2:Ac 1/3/968
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [Sept. 1968.]
- SuDoc number:
- NS 1.2:Em 7/950-66
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- June 1968
- SuDoc number:
- NS 1.2:G 75/2/965-66
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Apr. 1968
- SuDoc number:
- NS 1.11/2:14
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Mar. 1968
- SuDoc number:
- NS 1.13:P 96/968
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Mar. 1968
- SuDoc number:
- NS 1.11/2:13