Hargreaves, R. (1981). Little Miss Helpful. World International Publishing Ltd.
Cita Chicago (17th ed.)Hargreaves, Roger. Little Miss Helpful. Manchester: World International Publishing Ltd, 1981.
Cita MLA (9th ed.)Hargreaves, Roger. Little Miss Helpful. World International Publishing Ltd, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.