National Science Foundation (U.S.). (1977). Frontiers of science: Selected reports from Mosaic, the bi-monthly magazine of the National Science Foundation. The Foundation : for sale by the Supt. of Docs., U.S. Govt. Print. Off..

National Science Foundation (U.S.). Frontiers of Science: Selected Reports from Mosaic, the Bi-monthly Magazine of the National Science Foundation. Washington: The Foundation : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.

National Science Foundation (U.S.). Frontiers of Science: Selected Reports from Mosaic, the Bi-monthly Magazine of the National Science Foundation. The Foundation : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.