MLA

Søvik, Nils. Learning Disabilities In Reading, Spelling, and Writing. Trondheim: Tapir Forlag, 1987.

APA

Søvik, N. (1987). Learning disabilities in reading, spelling, and writing. Trondheim: Tapir Forlag.

Chicago

Søvik, Nils Learning Disabilities In Reading, Spelling, and Writing. Trondheim: Tapir Forlag, 1987.