JOHNSTON, B. G., & JOHNSTON, B. G. (1980). Basic Steel Design Bruce G. Johnston Et. Al. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)JOHNSTON, Bruce G., agus Bruce G. JOHNSTON. Basic Steel Design Bruce G. Johnston Et. Al. Prentice-Hall, 1980.
Lua MLA (8ú heag.)JOHNSTON, Bruce G., agus Bruce G. JOHNSTON. Basic Steel Design Bruce G. Johnston Et. Al. Prentice-Hall, 1980.
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