Oppenheim, E. P. (1930). Jennerton & co. Hodder & Stoughton.
Cita Chicago (17th ed.)Oppenheim, E. Phillips. Jennerton & Co. London: Hodder & Stoughton, 1930.
Cita MLA (8th ed.)Oppenheim, E. Phillips. Jennerton & Co. Hodder & Stoughton, 1930.
Atenció: Aquestes cites poden no estar 100% correctes.