https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22%22%20Global%20warming%22%22%20and%20location%3ACIRC&format=rss2 2 0 100 ISBN 0881321729 https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8397 By Cline, William R. . Washington, D.C. : Institute for International Economics, 1992 . 103p 0881321729

]]> https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8397 ISBN 9789710483365 https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8210 Quezon City, Philippines : IBON International, ©2008. 9789710483365

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