Hofstetter, P. (1998). Prespectives in life cycle impact assessment: A structured approach to combine models of the technosphere, ecosphere and valuesphere. Kluwer Academic Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hofstetter, Patrick. Prespectives in Life Cycle Impact Assessment: A Structured Approach to Combine Models of the Technosphere, Ecosphere and Valuesphere. Boston: Kluwer Academic Publishers, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)Hofstetter, Patrick. Prespectives in Life Cycle Impact Assessment: A Structured Approach to Combine Models of the Technosphere, Ecosphere and Valuesphere. Kluwer Academic Publishers, 1998.
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