Dyfyniad APA

(2015). Journal of learning disabilities. Hammill Institute on disabilities.

Dyfyniad Arddull Chicago

Journal of Learning Disabilities. Estados Unidos: Hammill Institute on disabilities, 2015.

Dyfyniad MLA

Journal of Learning Disabilities. Hammill Institute on disabilities, 2015.

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