(1991). Vol. 43, № 4, part B; Physical Review. Ser. B. 1991.
Cita Chicago (17th ed.)Vol. 43, № 4, Part B; Physical Review. Ser. B. 1991, 1991.
Cita MLA (9th ed.)Vol. 43, № 4, Part B; Physical Review. Ser. B. 1991, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.