References
- Abler , R. F. 1987 . What shall we say? To whom shall we speak . Annals of the Association of American Geographers , 77 ( 4 ) : 511 – 24 .
- Barrows , H. H. 1923 . Geography as human ecology . Annals of the Association of American Geographers , 13 ( 1 ) : 1 – 14 .
- Brigham , A. P. 1924 . The Association of American Geographers, 1903–1923 . Annals of the Association of American Geographers , 14 ( 3 ) : 109 – 16 .
- Davis , W. M. 1915 . The principles of geographical description . Annals of the Association of American Geographers , 5 : 61 – 105 .
- Dyer , C. K. 1911 . Philosophical geography . Annals of the Association of American Geographers , 1 : 107
- Sauer , C. O. 1924 . The survey method in geography and its objectives . Annals of the Association of American Geographers , 14 ( 1 ) : 17 – 33 .