Chapman, W. A. J. (1972). Workshop technology, part I: An introduction course (5th ed.). ELBS.
Lua i Stíl Chicago (17ú heag.)Chapman, W. A. J. Workshop Technology, Part I: An Introduction Course. 5th ed. London: ELBS, 1972.
Lua MLA (9ú heag.)Chapman, W. A. J. Workshop Technology, Part I: An Introduction Course. 5th ed. ELBS, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.