Dyfyniad APA

Ling, D. (1978). Cumulative record of speech skill acquisition. Washington, D.C: Alexander Graham Bell.

Dyfyniad Arddull Chicago

Ling, Daniel. Cumulative Record of Speech Skill Acquisition. Washington, D.C: Alexander Graham Bell, 1978.

Dyfyniad MLA

Ling, Daniel. Cumulative Record of Speech Skill Acquisition. Washington, D.C: Alexander Graham Bell, 1978.

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