Hofstetter Patrick Perspectives in life cycle impact assessment A structured Approach to Combine Models of the Technosphere , Ecosphere and Valuespere - Boston Kluwer Academic Publishers 1998 - xix, 484p Bibliography: P 447-80 cm. ISBN: 079238377X Source: General Book Subjects--Topical Terms: Human Geography Dewey Class. No.: U47:(G:55), N8