Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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