Citazione Stile APA (7a Edizione)

Krueger, R. R., & Bryfogle, R. C. (1975). Urban problems (Rev. [ed.].). Holt, Rinehart and Winston of Canada.

Citazione stile Chigago Style (17a edizione)

Krueger, Ralph R., e R. Charles Bryfogle. Urban Problems. Rev. [ed.]. Toronto [u.a.]: Holt, Rinehart and Winston of Canada, 1975.

Citatione MLA (9a ed.)

Krueger, Ralph R., e R. Charles Bryfogle. Urban Problems. Rev. [ed.]. Holt, Rinehart and Winston of Canada, 1975.