Lua APA (7ú heag.)

Heyel, C. (1969). Computers, office machines etc. Macmillan.

Lua i Stíl Chicago (17ú heag.)

Heyel, Carl. Computers, Office Machines Etc. London: Macmillan, 1969.

Lua MLA (9ú heag.)

Heyel, Carl. Computers, Office Machines Etc. Macmillan, 1969.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.