Copy of Posix Standards

[Mark Heaton]

I would like to get a copy of the Posix standards, particularly for the
P1003.1, P1003.4, and P1003.6 working groups.  If it is inapropriate to
route them via Usenet or there are charges associated please fill me in 
on the details and procedures for aquiring them.

(I tried sending this request to comp.std.unix, but it was returned
undeliverable.)

Thanks.