APA (7th ed.) Zitazioa
Lahey, T. M., & Walker, T. D. L. (Jun 23, 1996). Elf90 A First Programming Language. Association for Engineering Education - Engineering Library Division Papers.
Chicago Style (17th ed.) Zitazioa
Lahey, Thomas M., eta Thomas D L. Walker. "Elf90 A First Programming Language." Association for Engineering Education - Engineering Library Division Papers Jun 23, 1996.
MLA (9th ed.) Zitazioa
Lahey, Thomas M., eta Thomas D L. Walker. "Elf90 A First Programming Language." Association for Engineering Education - Engineering Library Division Papers, Jun 23, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.