Berg, L. (1967). Introduction to the operational calculus. John Wiley.
Chicago Style aipamenaBerg, Lothar. Introduction to the Operational Calculus. Amsterdam: John Wiley, 1967.
MLA aipamenaBerg, Lothar. Introduction to the Operational Calculus. John Wiley, 1967.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.