APA Citation

ProQuest (Firm), Black, R., & Crabtree, A. (2007). Quality assurance and certification in ecotourism. Cambridge, MA ; Wallingford: CABI Pub..

Chicago Style Citation

ProQuest (Firm), Rosemary Black, and Alice Crabtree. Quality Assurance and Certification in Ecotourism. Cambridge, MA ; Wallingford: CABI Pub., 2007.

MLA Citation

ProQuest (Firm), Rosemary Black, and Alice Crabtree. Quality Assurance and Certification in Ecotourism. Cambridge, MA ; Wallingford: CABI Pub., 2007.

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