Ogden, C. K. (1945). Basic step by step. Kegan Paul, Trench, Trubner & Co.
Cita Chicago Style (17a ed.)Ogden, C. K. Basic Step by Step. London: Kegan Paul, Trench, Trubner & Co, 1945.
Cita MLA (8a ed.)Ogden, C. K. Basic Step by Step. Kegan Paul, Trench, Trubner & Co, 1945.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.