Feldman, I., & Tibor, T. (1997). Implementing ISO 14000: A practical, comprehensive guide to the ISO 14000 environmental management standards. Irwin Professional Publishing.
Παραπομπή σε μορφή Chicago (17η εκδ.)Feldman, Ira, και Tom Tibor. Implementing ISO 14000: A Practical, Comprehensive Guide to the ISO 14000 Environmental Management Standards. Chicago: Irwin Professional Publishing, 1997.
Παραπομπή σε μορφή MLA (8th εκδ.)Feldman, Ira, και Tom Tibor. Implementing ISO 14000: A Practical, Comprehensive Guide to the ISO 14000 Environmental Management Standards. Irwin Professional Publishing, 1997.
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