Lua APA (7ú heag.)

Elson, H. W., & MacMullan, C. E. (1915). The story of the Old world. World Book Co..

Lua i Stíl Chicago (17ú heag.)

Elson, Henry W., agus Cornelia E. MacMullan. The Story of the Old World. Yonkers-on-Hudson: World Book Co., 1915.

Lua MLA (8ú heag.)

Elson, Henry W., agus Cornelia E. MacMullan. The Story of the Old World. World Book Co., 1915.

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