Washington : Hemisphere Pub. Corp. ; New York : distributed by Halsted Press, 1975
Physical Details
xi, 324 pages : illustrations ; 24 cm
ISBNs
9780470221556, 0470221550
OCLC
ocm01056906
Papers originally prepared for a research conference sponsored by the Growth and Development Branch, National Institute of Child Health and Human Development and held Oct. 2-5, 1973, Hunt Valley, Md.