[prepared by National Institutes of Health, Division of Research Grants, Statistics and Analysis Branch]
U.S. Dept. of Health, Education, and Welfare : Public Health Service , For sale by the Supt. of Docs., U.S. G.P.O.
[1967]
Public Health Service publication
no. 1564, pt. 1-4
pt. 1 , pt. 2 , pt. 3 , pt. 4
Available at 2 libraries