Cita APA (7a ed.)

Clay, M. M. (1985). The early detection of reading difficulties (3rd. ed.). Heinemann.

Cita Chicago Style (17a ed.)

Clay, Marie M. The Early Detection of Reading Difficulties. 3rd. ed. Auckland: Heinemann, 1985.

Cita MLA (9a ed.)

Clay, Marie M. The Early Detection of Reading Difficulties. 3rd. ed. Heinemann, 1985.