TY  - BOOK
AU  - Zweifel, Peter
AU  - Erdmann, Georg
AU  - Praktiknjo, Aaron
TI  - Energy economics: theory and applications
T2  - Springer Texts in Business and Economics
SN  - 9783662530207
PY  - 2017///
CY  - Berlin
PB  - Springer
KW  - SOIL CONTENT ANALYSIS
UR  - http://opac.lib.ruh.ac.lk/cgi-bin/koha/opac-retrieve-file.pl?id=d7271884c38abecf254c6045599fa0c9
ER  -