TY  - SER
ED  - National Academy os Sciences of the United States of America.
TI  - Proceedings of the National Academy of Sciences of the United States of America
SN  - 00278424
PY  - 1915///-
CY  - Washington, District of Columbia
PB  - National Academy of Sciences
KW  - CIENCIA
KW  - PUBLICACIONES SERIADAS
UR  - http://www.pnas.org
ER  -