(1985). Federal tax course. Prentice-Hall.
Chicago Style aipamenaFederal Tax Course. Englewood Cliffs, N. J: Prentice-Hall, 1985.
MLA aipamenaFederal Tax Course. Prentice-Hall, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1985). Federal tax course. Prentice-Hall.
Chicago Style aipamenaFederal Tax Course. Englewood Cliffs, N. J: Prentice-Hall, 1985.
MLA aipamenaFederal Tax Course. Prentice-Hall, 1985.