Callenbach, E. (1993). Ecomanagement: The Elmwood guide to ecological auditing sustainable business. Berrett-Koehler.
Chicago Style (17th ed.) CitationCallenbach, Ernest. Ecomanagement: The Elmwood Guide to Ecological Auditing Sustainable Business. San Francisco: Berrett-Koehler, 1993.
MLA (9th ed.) CitationCallenbach, Ernest. Ecomanagement: The Elmwood Guide to Ecological Auditing Sustainable Business. Berrett-Koehler, 1993.
Warning: These citations may not always be 100% accurate.