TY  - BOOK
AU  - Cage,John (
TI  - Composition in retrospect / 
SN  - 1-878972-11-1
PY  - 1993///
CY  - Cambridge : 
PB  - Exact Change, 
KW  - Cage, John (
KW  - Arte conceptual-
KW  - Estados Unidos
ER  -