Não informado. (1948). Highway Engineer. Institution of Highway Engineers.
Citação do estilo Chicago (17ª ed.)Não informado. Highway Engineer. London: Institution of Highway Engineers, 1948.
Citação MLA (8ª ed.)Não informado. Highway Engineer. Institution of Highway Engineers, 1948.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.