Citazione Stile APA (7a Edizione)

Kelly, T., & Mackay, J. (1937). Heroes of early times (Junior series.). Chambers.

Citazione stile Chigago Style (17a edizione)

Kelly, Thomas, e John Mackay. Heroes of Early Times. Junior series. Edinburgh London: Chambers, 1937.

Citatione MLA (9a ed.)

Kelly, Thomas, e John Mackay. Heroes of Early Times. Junior series. Chambers, 1937.