Cita APA

Loomis, J. B., & Walsh, R. G. 1. (1997). Recreation economic decisions: Comparing benefits and costs (2. edition.). Pennsylvania: Venture.

Citación estilo Chicago

Loomis, John B., y Richard G 1930- Walsh. Recreation Economic Decisions: Comparing Benefits and Costs. 2. edition. Pennsylvania: Venture, 1997.

Cita MLA

Loomis, John B., y Richard G 1930- Walsh. Recreation Economic Decisions: Comparing Benefits and Costs. 2. edition. Pennsylvania: Venture, 1997.