00000caa a22000003i 4500 UP-1685594773861817104 Buklod 20230619085743.0 j|||||||||||||| | ta 160704s1990 xx r |||| u|eng d (iLib)UPBAG-00008224620 BAG rda eng Circulation-Monograph Ponting, Clive author. Historical perspective of sustainable development Clive Ponting. 1990. pages [4]-33 illustrations 28 cm Photocopy. Indigenous impact. Sustainable development. Environment (November 1990). Vol. 32, No. 9. FO UPBAG UPBAG-MAIN Circulation-Monograph Analytics