Cita APA (7a ed.)

Banks, L. R. (1970). The backward shadow. The Companion Book Club.

Cita Chicago Style (17a ed.)

Banks, Lynne Reid. The Backward Shadow. Londres, Inglaterra: The Companion Book Club, 1970.

Cita MLA (9a ed.)

Banks, Lynne Reid. The Backward Shadow. The Companion Book Club, 1970.