standards.7: Remove references to dated books

Gallmeister and Lewine are rather old books. Probably,
there are better books to consult nowadays, and anyway,
this man page isn't intended to be a bibliography.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man7/standards.7

@@ -22,7 +22,7 @@
 .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
 .\" USA.
 .\"
-.TH STANDARDS 7 2009-02-09 "Linux" "Linux Programmer's Manual"
+.TH STANDARDS 7 2009-06-01 "Linux" "Linux Programmer's Manual"
 .SH NAME
 standards \- C and UNIX Standards
 .SH DESCRIPTION
@@ -110,9 +110,6 @@ http://www.open-std.org/jtc1/sc22/wg14/www/standards.
 "Portable Operating System Interface for Computing Environments".
 IEEE 1003.1-1990 part 1, ratified by ISO in 1990
 .RI ( "ISO/IEC 9945-1:1990" ).
-Further information can be found
-in Donald Lewine's "POSIX Programmer's Guide" (O'Reilly & Associates,
-Inc., 1991, ISBN 0-937175-73-0).
 The term "POSIX" was coined by Richard Stallman.
 .TP
 .B POSIX.2
@@ -125,9 +122,6 @@ IEEE Std 1003.1b-1993
 describing real-time facilities
 for portable operating systems, ratified by ISO in 1996
 .RI ( "ISO/IEC 9945-1:1996" ).
-For further information, see
-"POSIX.4: Programming for the real world"
-by Bill O. Gallmeister (O'Reilly & Associates, Inc. ISBN 1-56592-074-0).
 .TP
 .B POSIX.1c
 IEEE Std 1003.1c-1995 describing the POSIX threads interfaces.