TY  - BOOK
AU  - National Academy of Sciences of the United States of America
TI  - Proceedings National Academy of Sciences of the United States of America. Vol 57(1967) - 89(1992)
U1  - 506 
PY  - 1967///
CY  - Washington D.C.
PB  - National Academy of Sciences of the United States of America
N1  - National Academy of Sciences of the United States of America: Proceedings National Academy of Sciences of the United States of America. Vol 57(1967) - 89(1992).  Washington D.C..  National Academy of Sciences of the United States of America, 1967.--(506NA
ER  -