Lua APA (7ú heag.)

Butler, W. F. (1873). Ventilation of buildings. D. Van Nostrand.

Lua i Stíl Chicago (17ú heag.)

Butler, William Frederick. Ventilation of Buildings. New York: D. Van Nostrand, 1873.

Lua MLA (8ú heag.)

Butler, William Frederick. Ventilation of Buildings. D. Van Nostrand, 1873.

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