Cita APA (7a ed.)

Hillman, C. B. (1995). Before the school bell rings. Phi Delta Kappa Educational Foundation.

Cita Chicago Style (17a ed.)

Hillman, Carol B. Before the School Bell Rings. Indiana: Phi Delta Kappa Educational Foundation, 1995.

Cita MLA (9a ed.)

Hillman, Carol B. Before the School Bell Rings. Phi Delta Kappa Educational Foundation, 1995.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.