Wearing, S., & Neil, J. (2009). Ecotourism: Impacts, potentials, and possibilities (2nd ed.). Elsevier.
Dyfyniad Arddull ChicagoWearing, Stephen, and John Neil. Ecotourism: Impacts, Potentials, and Possibilities. 2nd ed. Amsterdam: Elsevier, 2009.
Dyfyniad MLAWearing, Stephen, and John Neil. Ecotourism: Impacts, Potentials, and Possibilities. 2nd ed. Elsevier, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.