APA (7th ed.) Citation

Ward, F. A., & Beal, D. J. (2000). Valuing nature with travel cost models: A manual. Edward Elgar.

Chicago Style (17th ed.) Citation

Ward, Frank A., and Diana J. Beal. Valuing Nature with Travel Cost Models: A Manual. Cheltenham: Edward Elgar, 2000.

MLA (8th ed.) Citation

Ward, Frank A., and Diana J. Beal. Valuing Nature with Travel Cost Models: A Manual. Edward Elgar, 2000.