Tohutoro APA (7th ed.)

Calkins, E. (1979). Adventure at beaver falls. Southern Publishing Association.

Tohutoru Kātū Chicago

Calkins, Erling. Adventure at Beaver Falls. Nashville, TN: Southern Publishing Association, 1979.

Tohutoro MLA

Calkins, Erling. Adventure at Beaver Falls. Southern Publishing Association, 1979.