APA (7th ed.) Citation

Rails-to-Trails Conservancy, Flink, C. A., Olka, K., & Searns, R. M. (2001). Trails for the twenty-first century: Planning, design, and management manual for multi-use trails (2nd ed.). Island Press.

Chicago Style (17th ed.) Citation

Rails-to-Trails Conservancy, Charles A. Flink, Kristine Olka, and Robert M. Searns. Trails for the Twenty-first Century: Planning, Design, and Management Manual for Multi-use Trails. 2nd ed. Washington, D.C.: Island Press, 2001.

MLA (9th ed.) Citation

Rails-to-Trails Conservancy, et al. Trails for the Twenty-first Century: Planning, Design, and Management Manual for Multi-use Trails. 2nd ed. Island Press, 2001.