Herrero, D. A. (1982). Approximation of Hilbert space operators. Pitman Advanced Publishing Program.
Citazione stile Chigago Style (17a edizione)Herrero, Domingo A. Approximation of Hilbert Space Operators. Boston: Pitman Advanced Publishing Program, 1982.
Citatione MLA (9a ed.)Herrero, Domingo A. Approximation of Hilbert Space Operators. Pitman Advanced Publishing Program, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.