Townsend, R. M., & Warren, B. (1972). Imaginary line handwriting. Steck-Vaughn.
Lua i Stíl Chicago (17ú heag.)Townsend, Rebecca Mae, agus Betsy Warren. Imaginary Line Handwriting. Austin, Tex.: Steck-Vaughn, 1972.
Lua MLA (8ú heag.)Townsend, Rebecca Mae, agus Betsy Warren. Imaginary Line Handwriting. Steck-Vaughn, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.