BrickLink - Part BA006pb11 : LEGO Stickered Assembly 4 x 1 x 3 with Classic Airport Logo Pattern on Both Sides (Stickers) - Set 6399 - 3 Brick 1 x 4 [Stickered Assembly] - BrickLink Reference Catalog
BrickLink - Part BA017pb01 : LEGO Stickered Assembly 4 x 1 x 3 with Airport Shuttle Pattern on Both Sides (Stickers) - Set 6399 - 2 Slope 45 2 x 1, 1 Brick 1 x 4, 2 Slope Inv. 45 2 x 1 [Stickered Assembly] - BrickLink Reference Catalog
BrickLink - Part 2685b : LEGO Monorail Coupling Long (Sets 6399 / 6991) [ Monorail] - BrickLink Reference Catalog
REVIEW: 6399 Airport Shuttle - LEGO Town - Eurobricks Forums
BrickLink - Part 6399stk01 : LEGO Sticker Sheet for Set 6399 - (163555) [Sticker Sheet] - BrickLink Reference Catalog