Harrison, P., Harrison, S., & Pearson, M. (1986). The geography of the environment (1. publ.). Arnold-Wheaton.
Citazione stile Chigago Style (17a edizione)Harrison, Patricia, Steve Harrison, e Mike Pearson. The Geography of the Environment. 1. publ. Leeds: Arnold-Wheaton, 1986.
Citatione MLA (9a ed.)Harrison, Patricia, et al. The Geography of the Environment. 1. publ. Arnold-Wheaton, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.