Crockett, J. U. (1971). Pelouses et plantes couvre-sol. Time-Life.
Cita Chicago (17th ed.)Crockett, James Underwood. Pelouses Et Plantes Couvre-sol. Time-Life, 1971.
Cita MLA (9th ed.)Crockett, James Underwood. Pelouses Et Plantes Couvre-sol. Time-Life, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.