Hattatt, L. (1998). Encyclopedia of garden plants and flowers. London : Dempsey Parr.
Cita Chicago (17th ed.)Hattatt, Lance. Encyclopedia of Garden Plants and Flowers. London : Dempsey Parr, 1998.
Cita MLA (9th ed.)Hattatt, Lance. Encyclopedia of Garden Plants and Flowers. London : Dempsey Parr, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.