Hawkins, D. E., Epler Wood, M., & Bittman, S. (1995). The ecolodge sourcebook: For planners & developers. The Ecotourism Society.
Cita Chicago Style (17a ed.)Hawkins, Donald E., Megan Epler Wood, e Sam Bittman. The Ecolodge Sourcebook: For Planners & Developers. Vermont: The Ecotourism Society, 1995.
Cita MLA (8a ed.)Hawkins, Donald E., et al. The Ecolodge Sourcebook: For Planners & Developers. The Ecotourism Society, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.