Hartwell, B., & King, D. (1981). [1893-1981: IMF = FIOM = IMB = FITIM]. London: FIOM.
Cita Chicago (17th ed.)Hartwell, Bob, i David King. [1893-1981: IMF = FIOM = IMB = FITIM]. London: FIOM, 1981.
Cita MLA (8th ed.)Hartwell, Bob, i David King. [1893-1981: IMF = FIOM = IMB = FITIM]. London: FIOM, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.