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.
Style de citation Chicago (17e éd.)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.
Style de citation MLA (8e éd.)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.
Attention : ces citations peuvent ne pas être correctes à 100%.