APA-viite (7. p.)
(1972). SPACE-RESERVATION-SYSTEM electronic railways: The electronic Space Reservation System of the German federal railways.
Chicago-viite (17. p.)
SPACE-RESERVATION-SYSTEM Electronic Railways: The Electronic Space Reservation System of the German Federal Railways. 1972.
MLA-viite (9. p.)
SPACE-RESERVATION-SYSTEM Electronic Railways: The Electronic Space Reservation System of the German Federal Railways. 1972.
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