TY  - BOOK
ED  - American Telephone and Telegraph Company
TI  - UNIX system V, release 4: programmer's reference manual 
SN  - 0139470298
PY  - 1990///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - UNIX System V (Computer file)
KW  - UNIX (Computer operating system)
N1  - 'UNIX System V, UNIX software operation.'
ER  -