TY  - BOOK
AU  - Sachs,R.K.
ED  - International School of Physics "Enrico Fermi"
ED  - Societa italiana di fisica
TI  - General relativity and cosmology: proceedings 
U1  -  530.11 
PY  - 1971///
CY  - New York
PB  - Academic Press
KW  - Cosmogony
KW  - Astrophysics
KW  - Relativity (Physics)
N1  - At head of title: Italian Physical Society; Added t.p. in Italian, with title: Relativita generale e cosmologia; Course held June 30-July 12, 1969
ER  -