345036 Armstrong, M. A. (1985). Learning FORTH. New York : John Wiley.
Lua i Stíl Chicago (17ú heag.)345036 Armstrong, Margaret A. Learning FORTH. New York : John Wiley, 1985.
Lua MLA (9ú heag.)345036 Armstrong, Margaret A. Learning FORTH. New York : John Wiley, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.