Sullivan, W. H. (1984). Obligato 1939-1979 notes on a foreign service career. W. W. Norton.
Cita Chicago (17th ed.)Sullivan, William H. Obligato 1939-1979 Notes on a Foreign Service Career. W. W. Norton, 1984.
Cita MLA (9th ed.)Sullivan, William H. Obligato 1939-1979 Notes on a Foreign Service Career. W. W. Norton, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.