Gaya APA
STRATEGIES AND POLICIES FOR AIR POLLUTION ABATEMENT. (1999).
NEW YORK:
UNITED NATIONS.
Gaya Chicago
STRATEGIES AND POLICIES FOR AIR POLLUTION ABATEMENT.
.
NEW YORK:
UNITED NATIONS,
1999.
Text.
Gaya MLA
STRATEGIES AND POLICIES FOR AIR POLLUTION ABATEMENT.
.
NEW YORK:
UNITED NATIONS,
1999.
Text.
Gaya Turabian
STRATEGIES AND POLICIES FOR AIR POLLUTION ABATEMENT.
NEW YORK:
UNITED NATIONS,
1999.
Print.