Cita APA (7th ed.)

Roser, N. L. (1987). Laidlaw spelling. Laidlaw Brothers.

Cita Chicago (17th ed.)

Roser, Nancy L. Laidlaw Spelling. Illinois: Laidlaw Brothers, 1987.

Cita MLA (9th ed.)

Roser, Nancy L. Laidlaw Spelling. Laidlaw Brothers, 1987.