Cita APA (7th ed.)

Keene, C. (1972). The clue in the old stagecoach. William Collins Sons and Co. Ltd..

Cita Chicago (17th ed.)

Keene, Carolyn. The Clue in the Old Stagecoach. Great Britain: William Collins Sons and Co. Ltd., 1972.

Cita MLA (9th ed.)

Keene, Carolyn. The Clue in the Old Stagecoach. William Collins Sons and Co. Ltd., 1972.