ROBINETTE, G. O. (1985). Barrier. Free Exterior Design. Van Nostrand Company Inc.
Lua i Stíl Chicago (17ú heag.)ROBINETTE, Gary O. Barrier. Free Exterior Design. Van Nostrand Company Inc, 1985.
Lua MLA (8ú heag.)ROBINETTE, Gary O. Barrier. Free Exterior Design. Van Nostrand Company Inc, 1985.
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