APA (7th ed.) Citation

Liddle, M. J. (1997). Recreation ecology : the ecological impact of outdoor recreation and ecotourism / Michael Liddle: The ecological impact of outdoor recreation and ecotourism. Chapman & Hall.

Chicago Style (17th ed.) Citation

Liddle, M. J. Recreation Ecology : The Ecological Impact of Outdoor Recreation and Ecotourism / Michael Liddle: The Ecological Impact of Outdoor Recreation and Ecotourism. London: Chapman & Hall, 1997.

MLA (9th ed.) Citation

Liddle, M. J. Recreation Ecology : The Ecological Impact of Outdoor Recreation and Ecotourism / Michael Liddle: The Ecological Impact of Outdoor Recreation and Ecotourism. Chapman & Hall, 1997.

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