Charter, M. E., & Tischner, U. E. (2001). Sustainable solutions: Developing products and services for the future.
শিকাগো স্টাইলে সাইটেশনCharter, Martin; Editor, এবং Ursula; Editor Tischner. Sustainable Solutions: Developing Products and Services for the Future. Sheffield, Greenleaf Publishing, 2001.
এমএলএ সাইটেশনCharter, Martin; Editor, এবং Ursula; Editor Tischner. Sustainable Solutions: Developing Products and Services for the Future. 2001.
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