Não informado. (1905). School science and mathematics. School Science and Mathematics Association.
Citação do estilo Chicago (17ª ed.)Não informado. School Science and Mathematics. Menasha, Wis: School Science and Mathematics Association, 1905.
Citação MLA (8ª ed.)Não informado. School Science and Mathematics. School Science and Mathematics Association, 1905.
警告：這些引文格式不一定是100％准確.