TY  - BOOK
AU  - Groff,James R.
AU  - Weinberg,Paul N.
TI  - Understanding UNIX: a conceptual guide 
SN  - 0880220643
U1  - 001.642 22
PY  - 1983///
CY  - Indianapolis
PB  - Que Corp.
KW  - UNIX (Computer file)
KW  - UNIX
KW  - Operating system
N1  - Includes index
UR  - http://books.google.co.ug/books?id=tcxCkIxzCO4C&printsec=frontcover&dq=introduction+to+biology&hl=en&sa=X&ei=CUAPU73-NuS00wXyuoCwDA&redir_esc=y#v=onepage&q=introduction%20to%20biology&f=false
ER  -