Berg, L. (1967). Introduction to the operational calculus. North-Holland Pub. Co : J. Wiley.
Lua i Stíl Chicago (17ú heag.)Berg, Lothar. Introduction to the Operational Calculus. Amsterdam : New York: North-Holland Pub. Co : J. Wiley, 1967.
Lua MLA (9ú heag.)Berg, Lothar. Introduction to the Operational Calculus. North-Holland Pub. Co : J. Wiley, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.