Eagles, P. F. J. (1984). The planning and management of environmentally sensitive areas. Longman.
Chicago-viite (17. p.)Eagles, Paul F. J. The Planning and Management of Environmentally Sensitive Areas. London: Longman, 1984.
MLA-viite (9. p.)Eagles, Paul F. J. The Planning and Management of Environmentally Sensitive Areas. Longman, 1984.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.