Explaining... Biosphere reserves / Text by Christine Sourd ; Ill.: Lise Herzog ; Transl. from French by Barbara Thompson. - Paris : UNESCO, 2004. - 39p. : ill. ; 20cm.см.. - ISBN 92-3-103844-3 : [n.p.][MFN: 7843]
UDC: 502.3
• Sourd, Christine. (auth.);
Subjects:- ბუნების დაცვა; ბუნება და საზოგადოება;
E 83.816/3 = 502.3/E-97 - Civil Education Reading Hall