TY - BOOK AU - Gunatilake,Herath M. TI - Environmental valuation: theory and applications SN - 9559812106 U1 - 332.632 PY - 2003/// CY - Srilanka PB - Postgraduate Institute of Agriculture, University of Peradeniya KW - Investment economics KW - Natural resources and eco-system KW - Valuation methods N1 - includes bibliographical references; Economics UR - http://lib.ewubd.edu/ebook/8004 ER -