Não informado. (1948). Columbia Engineering Quarterly. Columbia University, Faculty of Engineering, School of Engineering.
Citação do estilo Chicago (17ª ed.)Não informado. Columbia Engineering Quarterly. New York: Columbia University, Faculty of Engineering, School of Engineering, 1948.
Citação MLA (8ª ed.)Não informado. Columbia Engineering Quarterly. Columbia University, Faculty of Engineering, School of Engineering, 1948.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.