Hill, R. (1988). Margaret Thatcher: Roland Hill (Orig.-Ausg.). Herder.
Cita Chicago (17th ed.)Hill, Roland. Margaret Thatcher: Roland Hill. Orig.-Ausg. Freiburg [u.a.]: Herder, 1988.
Cita MLA (8th ed.)Hill, Roland. Margaret Thatcher: Roland Hill. Orig.-Ausg. Herder, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.