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.
芝加哥风格引文Edwards, Stephen N. autor, William J. McLaughlin, 与 Sam H. Ham. Comparative Study of Ecotourism Policy in the Americas: Latin America and the Caribbean. Primera edición. Washington: OEA, University of Idaho, 1999.
MLA引文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.
警告：这些引文格式不一定是100％准确.