"Photo Run-by: General Notice [1948 letter to EBT trainmen about steel tunnel doors]," Card, "Size Doesn't Matter: Modeling the East Broad Top in Nn3," p. Mellander, "Product Review: Bachmann On30 EBT 2-Bay Hopper," p. Pearson, "Rockhill Coal Goes to Market: Moving the Black Diamonds in HOn3,: p.
Abbreviations denote the following features: g (graph), m (map), p (photograph), and s (sketch or non-photographic illustration).
