Graham, N. (1988). Introduction to Pascal (3rd ed.). West Pub.
Lua i Stíl Chicago (17ú heag.)Graham, Neill. Introduction to Pascal. 3rd ed. St. Paul, Minn: West Pub, 1988.
Lua MLA (9ú heag.)Graham, Neill. Introduction to Pascal. 3rd ed. West Pub, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.