Style de citation APA (7e éd.)

Morris, J. M. (1972). The first R: Yesterday, today and tomorrow. Ward Lock Educational.

Style de citation Chicago (17e éd.)

Morris, Joyce Mildred. The First R: Yesterday, Today and Tomorrow. London: Ward Lock Educational, 1972.

Style de citation MLA (9e éd.)

Morris, Joyce Mildred. The First R: Yesterday, Today and Tomorrow. Ward Lock Educational, 1972.