APA (7th ed.) Citation

Nussbaum, R., & Simula, M. (2005). The forest certification handbook (2nd ed.). Earthscan.

Chicago Style (17th ed.) Citation

Nussbaum, Ruth, and Markku Simula. The Forest Certification Handbook. 2nd ed. London: Earthscan, 2005.

MLA (9th ed.) Citation

Nussbaum, Ruth, and Markku Simula. The Forest Certification Handbook. 2nd ed. Earthscan, 2005.