TY  - BOOK
AU  - Yang, Cui-Qing,
AU  - Ali, Mahir S.,
TI  - Xlib by example: X version 11, release 5 
SN  - 0120502100
AV  - QA76.76W56 Y35
PY  - 1994///
CY  - Boston
PB  - Ap professional
KW  - X Window System (Sistema para computadora)
ER  -