MLA
Seifert, Eberhard K. "EPE According to ISO 14031: Concept, Experience, and Revision Issues." Information Systems for Sustainable Development, edited by Lorenz M. Hilty, et al., IGI Global, 2005, pp. 1-14. https://doi.org/10.4018/978-1-59140-342-5.ch001
APA
Seifert, E. K. (2005). EPE According to ISO 14031: Concept, Experience, and Revision Issues. In L. Hilty, E. Seifert, & R. Treibert (Eds.), Information Systems for Sustainable Development (pp. 1-14). IGI Global. https://doi.org/10.4018/978-1-59140-342-5.ch001
Chicago
Seifert, Eberhard K. "EPE According to ISO 14031: Concept, Experience, and Revision Issues." In Information Systems for Sustainable Development, edited by Lorenz M. Hilty, Eberhard K. Seifert, and Rene Treibert, 1-14. Hershey, PA: IGI Global, 2005. https://doi.org/10.4018/978-1-59140-342-5.ch001
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