APA (7 ম সংস্করণ) উদ্ধৃতি

O'Brien, L. (1992). Introducing quantitative geography: Measurement, methods and generalised linear models G70.23 .O. Routledge.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

O'Brien, Larry. Introducing Quantitative Geography: Measurement, Methods and Generalised Linear Models G70.23 .O. London: Routledge, 1992.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

O'Brien, Larry. Introducing Quantitative Geography: Measurement, Methods and Generalised Linear Models G70.23 .O. Routledge, 1992.