Cita APA (7a ed.)

Tingey, C. (1989). Implementing early intervention. Paul H. Brookes.

Cita Chicago Style (17a ed.)

Tingey, Carol. Implementing Early Intervention. Baltimore [etc.]: Paul H. Brookes, 1989.

Cita MLA (9a ed.)

Tingey, Carol. Implementing Early Intervention. Paul H. Brookes, 1989.