Graham, P. Priorities for action in improvement areas. Town Planning Review.
Chicago-viite (17. p.)Graham, Peter. "Priorities for Action in Improvement Areas." Town Planning Review .
MLA-viite (9. p.)Graham, Peter. "Priorities for Action in Improvement Areas." Town Planning Review, .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.