Dyfyniad APA

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.

Dyfyniad Arddull Chicago

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.

Dyfyniad MLA

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.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.