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- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- Oct. 25, 1973
- SuDoc number:
- NS 1.27:B 61
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [1973.]
- SuDoc number:
- NS 1.27:D 53
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [1973.]
- SuDoc number:
- NS 1.27:H 44
- Corporate/Agency Authors:
- National Science Foundation
- Publisher:
- National Science Foundation
- Date:
- [1972.]
- SuDoc number:
- NS 1.27:H 43