Spry, C. (1951). Summer and autumn flowers. J.M. Dent & Sons Ltd..
Cita Chicago (17th ed.)Spry, Constance. Summer and Autumn Flowers. London: J.M. Dent & Sons Ltd., 1951.
Cita MLA (9th ed.)Spry, Constance. Summer and Autumn Flowers. J.M. Dent & Sons Ltd., 1951.
Atenció: Aquestes cites poden no estar 100% correctes.