Citazione APA

Environment and Resources: Geography in an urban age. New York: Macmillan Publishing.

Stile di citazione Chicago

Environment and Resources: Geography in an Urban Age. New York: Macmillan Publishing.

Citazione MLA

Environment and Resources: Geography in an Urban Age. New York: Macmillan Publishing.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.