"0, . "
the i.e.s. code remcommendations for good interior lighting: / - 1 ed. - uk : i.e.s. 1961. - "v, 60p.; 25 cm."
TH7715 / .I45 1968
the i.e.s. code remcommendations for good interior lighting: / - 1 ed. - uk : i.e.s. 1961. - "v, 60p.; 25 cm."
TH7715 / .I45 1968