Cita APA (7a ed.)
Sheldon, C., & Yoxon, M. Installing Environmental Management Systems: A Step-by-Step Guide (Ed. rev.). Earthscan.
Cita estilo Chicago (17a ed.)
Sheldon, Christopher, y Mark Yoxon. Installing Environmental Management Systems: A Step-by-Step Guide. Ed. rev. Londres, Inglaterra: Earthscan.
Cita MLA (9a ed.)
Sheldon, Christopher, y Mark Yoxon. Installing Environmental Management Systems: A Step-by-Step Guide. Ed. rev. Earthscan.
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