APA (7th ed.) Zitazioa
Simpson, B. J. (1985). Quantitative methods for planning and urban studies. Gower.
Chicago Style (17th ed.) Zitazioa
Simpson, Barry J. Quantitative Methods for Planning and Urban Studies. England: Gower, 1985.
MLA (9th ed.) Zitazioa
Simpson, Barry J. Quantitative Methods for Planning and Urban Studies. Gower, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.