8Gunther Barth, "Bitter Strength : A History of the Chi- nese in the United States, 1850 - 1870", California Historical Society Quarterly, Vol. 45, No. 4, 1966, pp. 354 - 357.
9David Galenson, "The Rise and Fall of Indentured Servitude in the Americas : An Economic Analysis", Engerman, S.L. ed. , Trade and the Industrial Revolution, 1700 - 1850, Chehenham, U. K. : Elgar, 1996, pp. 31-56.
10George F. Seward, Chinese Immigration in Its Social and Economical Aspects, New York: Charles Scribner's Sons, 1881, p. 138.
