Fochler-Hauke, Gustav
Der Fischer weltalmanach zahlen daten fakten 1992
Fischer Taschenbuch Verlag, 1991
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Whitaker's almanack 1994
J. Whitaker and Sons , 1993
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Whitaker's concise almanack 1994
J. Whitaker and Sons, 1994
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The aviation & aerospace almanac 1997
executive editor Richard Lampl
Aviation Week Group, 1997
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The Americana Annual 1986
edited by Jeffrey H. Hacker
Canada Grolier, 1986
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