Roberts, S., & Conway, A. (1961). The Welsh in America: Letters from the immigrants. University of Minnesota Press.
芝加哥风格引文Roberts, Sarah, 与 Alan Conway. The Welsh in America: Letters from the Immigrants. Minneapolis: University of Minnesota Press, 1961.
MLA引文Roberts, Sarah, 与 Alan Conway. The Welsh in America: Letters from the Immigrants. University of Minnesota Press, 1961.
警告：这些引文格式不一定是100％准确.