1. Dose-response relationship between human disturbance and brown pelican breeding success;Anderson;Wildl. Soc. Bull.,1988
2. Nonconsumptive outdoor recreation: an annotated bibliography of human-wildlife interactions;Boyle;US Dep. Inter. Fish & Wildl. Serv. Spec. Sci. Rep. Wildl.,1983
3. Effect of non-consumptive recreation on wildlife: a review;Boyle;Wildl. Soc. Bull.,1985
4. Non-consumptive use and management of cetaceans in British Columbia coastal waters;Duffus,1988
5. Non-consumptive wildlife-oriented recreation: a conceptual framework;Duffus;Biol. Conserv.,1990