Christian Brothers. (1949). The De La Salle arithmetics: A practical course for school and life (1949 Edition.). Brothers of the Christian schools, La Salle Bureau.
Citação do estilo Chicago (17ª ed.)Christian Brothers. The De La Salle Arithmetics: A Practical Course for School and Life. 1949 Edition. New York: Brothers of the Christian schools, La Salle Bureau, 1949.
Citação MLA (8ª ed.)Christian Brothers. The De La Salle Arithmetics: A Practical Course for School and Life. 1949 Edition. Brothers of the Christian schools, La Salle Bureau, 1949.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.