Not a dirty word :
TVE International.
Not a dirty word : Environment / [videorecording] by TVE International - TVE international. - Nairobi Kenya : ACE communications, 1990. - 1 Videotape (27 minutes) : sd,col ; 1/2 in. - 27 minutes
The latest U.N. assessment is that 1.1 billion people live without access to clean drinking water and more than twice that number is denied hygienic means of sanitation...
$
Sanitation.
sewage disposal.
water quality.
TD327 / .T94
Not a dirty word : Environment / [videorecording] by TVE International - TVE international. - Nairobi Kenya : ACE communications, 1990. - 1 Videotape (27 minutes) : sd,col ; 1/2 in. - 27 minutes
The latest U.N. assessment is that 1.1 billion people live without access to clean drinking water and more than twice that number is denied hygienic means of sanitation...
$
Sanitation.
sewage disposal.
water quality.
TD327 / .T94