APA Citation

Tompkins, P., & Bird, C. (1998). Secrets of the soil: New solutions for restoring our planet. Anchorage: Earthpulse.

Chicago Style Citation

Tompkins, Peter, and Christopher Bird. Secrets of the Soil: New Solutions for Restoring Our Planet. Anchorage: Earthpulse, 1998.

MLA Citation

Tompkins, Peter, and Christopher Bird. Secrets of the Soil: New Solutions for Restoring Our Planet. Anchorage: Earthpulse, 1998.

Warning: These citations may not always be 100% accurate.