Trapp, M. A. (1949). The story of the Trapp Family Singers. Lippincott.
芝加哥风格引文Trapp, Maria Augusta. The Story of the Trapp Family Singers. Philadelphia: Lippincott, 1949.
MLA引文Trapp, Maria Augusta. The Story of the Trapp Family Singers. Lippincott, 1949.
警告：这些引文格式不一定是100％准确.