Garrison, W. L. (1967). Quantitative geography. Dept. of Geography of Northwestern University.
Tohutoru Kātū Chicago (17th ed.)Garrison, William Louis. Quantitative Geography. Evanston: Dept. of Geography of Northwestern University, 1967.
Tohutoro MLA (9th ed.)Garrison, William Louis. Quantitative Geography. Dept. of Geography of Northwestern University, 1967.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.