THE WEALTH OF NATIONS

[11] BOSERUP E, 1965, CONDITIONS AGRICULTU

[12] BRAUDEL F, 1949, MEDITERRANEE MOND ME, V2

[13] BRICE WC, 1978, ENV HISTORY NEAR MID

[14] BROOKFIELD H, 1975, INTERDEPENDENT DEV P

[15] BRUTON HJ, 1960, THEORIES EC GROWTH, P239

[16] Bryan PW, 1933, MANS ADAPTATION NATU

[17] Bryson R.A., 1977, CLIMATES HUNGER

[18] Burke Peter, 1972, EC SOC EARLY MODERN, P11

[19] BUTZER KW, 1970, CAMBRIDGE ANCIENT HI, V1, P35

[20] CAMERON EN, 1972, MINERAL POSITION US

[11] BOSERUP E, 1965, CONDITIONS AGRICULTU

[12] BRAUDEL F, 1949, MEDITERRANEE MOND ME, V2

[13] BRICE WC, 1978, ENV HISTORY NEAR MID

[14] BROOKFIELD H, 1975, INTERDEPENDENT DEV P

[15] BRUTON HJ, 1960, THEORIES EC GROWTH, P239

[16] Bryan PW, 1933, MANS ADAPTATION NATU

[17] Bryson R.A., 1977, CLIMATES HUNGER

[18] Burke Peter, 1972, EC SOC EARLY MODERN, P11

[19] BUTZER KW, 1970, CAMBRIDGE ANCIENT HI, V1, P35

[20] CAMERON EN, 1972, MINERAL POSITION US