Feintuch, A. (1982). System theory: A Hilbert space approach. Academic Press.
Lua i Stíl Chicago (17ú heag.)Feintuch, Avraham. System Theory: A Hilbert Space Approach. New york: Academic Press, 1982.
Lua MLA (9ú heag.)Feintuch, Avraham. System Theory: A Hilbert Space Approach. Academic Press, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.