https://libcat.egst.edu.et//cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ACallisto%20Reference%2C&sort_by=relevance&format=rss 4 0 50 ISBN:9781641160155 (hpb) : https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=10470 ]]> New York:., Callisto Reference, ; 2018 .
vi, 221 p ; 24 cm..
9781641160155 (hpb) :

]]> Place hold on Solid Waste Management

]]> https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=10470 ISBN:9781632396693 (hpb) https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=10996 ]]> New York: CALLISTO REFERENCE,, 2016 .
vii, 270 p ; 26 cm..
9781632396693 (hpb)

]]> Place hold on Environmental Ethics and Sustainability /

]]> https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=10996 ISBN: https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12296 New York: CALLISTO REFERENCE, 2018 .
209 pages ; 26 cm..

]]> Place hold on Understanding Sustainable Development /

]]> https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12296 ISBN:9781632399250 (hpb) : https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12303 ]]> USA: Callisto Reference, 2018 .
255 p. 26 cm.
9781632399250 (hpb) :

]]> Place hold on Climate Crisis:

]]> https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12303