ב. מקורות לועזיים

1 . Amiran , D . H . K . The Patternof Settlement in Palestine , I . E . J ,. 3 f 1953 , p . p . 65 - 78 , 192 - 309 , 25 O - 260 2 . A Surveyof Palestine 1 Prepared in Dec , 1945 and Jan . 1946 for the information of the -Anglo American Committee of Inquiry Barron , J . FB Palestine Report and General Abstracts of the Census of 1922 , Jerusalem , L 923 , Berman , M . Israel ' s dynamic frontier region - the Negev GJ . 63 , 1964 , p . p . 393 - 402 5 . Billington , R . A . ed . The Frontier Thesis , New York , 1966 6 . Billington , R . A . Westward Expansion , New York , 1967 7 . Bowman , I . The PioneerFringe , A . G . S . 13 , 1931 , p . p , 1 - 63 , 8 . Department of Statistics , Statistical Abstractof Palestine , 1944 - 45 Jerusalem , Dec . 194 , 9 . Epstein , E . Bedu in of the Negev , Jewish Frontier , 15 Mar . 9481 , p . p . 30 - 34 10 . Gertze , A . Negev Irrigation Project , Palestine Informa tion , 17 - 18 , Sep . 1947 , p . p . 25 - 30 , 11 . Gottman , J . The Pioneer Frin...  אל הספר