bradifield, r. M., keillor,jean-pierre, r., & pranell, m. O. (1977). The International year book and statesmen's who's who. IPC business press limited.
Citace podle Chicago (17th ed.)bradifield, robert M., researcher keillor,jean-pierre, a mervyn O. pranell. The International Year Book and Statesmen's Who's Who. britain: IPC business press limited, 1977.
Citace podle MLA (9th ed.)bradifield, robert M., et al. The International Year Book and Statesmen's Who's Who. IPC business press limited, 1977.
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