Williams, H. L., & Williams, O. K. (1967). America´s small houses. Barnes and Company.
Lua i Stíl Chicago (17ú heag.)Williams, Henry Lionel, agus Ottalie K. Williams. America´s Small Houses. New York: Barnes and Company, 1967.
Lua MLA (8ú heag.)Williams, Henry Lionel, agus Ottalie K. Williams. America´s Small Houses. Barnes and Company, 1967.
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