TY - BOOK AU - Kopp Raymond J AU - Smith V Kerry Ed. TI - Valuing natural assets SN - 0915707675 U1 - X:271:(B).73.N9, N3 PY - 1993/// CY - Washington PB - Resources for the future KW - Natural Resources Economics N1 - Bibliography chapterwise; Glossary: P 337-42 ER -