Garrett, H. E. G., Baltensperger, D., Dick, W., Roberts, C., Logsdon, S., Savin, M., . . . Al-Amoodi, L. (2009). North American agroforestry: An integrated science and practice (2nd edition.). Wisconsin, Estados Unidos: American Society of Agronomy.

Garrett, H. E. Gene,, David Baltensperger, Warren Dick, Craig Roberts, Sally Logsdon, Mary Savin, Hari Krishnan, April Ulery, and Lisa Al-Amoodi. North American Agroforestry: An Integrated Science and Practice. 2nd edition. Wisconsin, Estados Unidos: American Society of Agronomy, 2009.

Garrett, H. E. Gene,, et al. North American Agroforestry: An Integrated Science and Practice. 2nd edition. Wisconsin, Estados Unidos: American Society of Agronomy, 2009.