Παραπομπή σε μορφή APA (7η εκδ.)

Edwards, S. N. a., McLaughlin, W. J., & Ham, S. H. (1999). Comparative study of ecotourism policy in the americas: Latin America and the Caribbean (Primera edición.). OEA, University of Idaho.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Edwards, Stephen N. autor, William J. McLaughlin, και Sam H. Ham. Comparative Study of Ecotourism Policy in the Americas: Latin America and the Caribbean. Primera edición. Washington: OEA, University of Idaho, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Edwards, Stephen N. autor, et al. Comparative Study of Ecotourism Policy in the Americas: Latin America and the Caribbean. Primera edición. OEA, University of Idaho, 1999.