Williams, W. C. Approach to a city: William Carlos Williams. The city.(1979).
Chicago-Zitierstil (17. Ausg.)Williams, William Carlos. "Approach to a City: William Carlos Williams." The City.(1979) .
MLA-Zitierstil (8. Ausg.)Williams, William Carlos. "Approach to a City: William Carlos Williams." The City.(1979), .
警告：這些引文格式不一定是100％准確.