Birk, W. O. (1949). Structural grammar for building sentences. D.C. Heath.
芝加哥风格引文Birk, William Otto. Structural Grammar for Building Sentences. Boston: D.C. Heath, 1949.
MLA引文Birk, William Otto. Structural Grammar for Building Sentences. D.C. Heath, 1949.
警告：这些引文格式不一定是100％准确.