edited by Steven J. Phillips and Patricia Wentworth Comus (first edition), Mark A. Dimmitt, Patricia Wentworth Comus, and Linda M. Brewer (second edition)
prepared by the Secretariat of the Commission for Environmental Cooperation ; contributing authors, Tundi Agardy, Inés Arroyo-Quiroz, Jane Barton, Ramón Pérez Gil, Erica Phipps, Jamie Reaser, Elizabeth Shoch, Kent Thornton