Não informado. (1905). School science and mathematics. School Science and Mathematics Association.
Čikaški stil citiranja (17. izdanje)Não informado. School Science and Mathematics. Menasha, Wis: School Science and Mathematics Association, 1905.
MLA način citiranja (8. izdanje)Não informado. School Science and Mathematics. School Science and Mathematics Association, 1905.
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