* Langer, William L. "American Foods and Europe's Population Growth 1750-1850," ''Journal of Social History,'' Vol. 8, No. 2 (Winter, 1975), pp. 51–66 [http://www.jstor.org/pss/3786266 in JSTOR] | * Langer, William L. "American Foods and Europe's Population Growth 1750-1850," ''Journal of Social History,'' Vol. 8, No. 2 (Winter, 1975), pp. 51–66 [http://www.jstor.org/pss/3786266 in JSTOR] |