Não informado. (1970). Building science series. U.S. Department of Commerce, National Bureau of Standards.
Citação do estilo Chicago (17ª ed.)Não informado. Building Science Series. Washington: U.S. Department of Commerce, National Bureau of Standards, 1970.
Citação MLA (8ª ed.)Não informado. Building Science Series. U.S. Department of Commerce, National Bureau of Standards, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.