APA (7. basım) Alıntı

Klopffer, W., & Grahl, B. (2014). Life cycle assessment (LCA): A guide to best practice. Wiley-VCH Verlag GmbH & Co. KGaA.

Chicago Style (17. basım) Atıf

Klopffer, Walter, ve Birgit Grahl. Life Cycle Assessment (LCA): A Guide to Best Practice. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014.

MLA (9th ed.) Atıf

Klopffer, Walter, ve Birgit Grahl. Life Cycle Assessment (LCA): A Guide to Best Practice. Wiley-VCH Verlag GmbH & Co. KGaA, 2014.