Editori 
Alfred Oppermann
Aeronautical-English. Technisches Taschenwoerter und Handbuch der Lufthahrt. Technical Pocket-Dictionary and Manual of Aviation. Band V. Volume V
Alfred Oppermann, 1968
testi in inglese, tedesco

Aeronautical-English. Technisches Taschenwoerter und Handbuch der Lufthahrt. Technical Pocket-Dictionary and Manual of Aviation. Band VI. Volume VI
Alfred Oppermann, 1970
testi in inglese, tedesco

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