Ellis, B. W. (2007). Covering ground: Unexpected ideas for landscaping with colorful, low-maintenance ground covers. Storey Pub..
Cita Chicago Style (17a ed.)Ellis, Barbara W. Covering Ground: Unexpected Ideas for Landscaping with Colorful, Low-maintenance Ground Covers. North Adams, Mass.: Storey Pub., 2007.
Cita MLA (8a ed.)Ellis, Barbara W. Covering Ground: Unexpected Ideas for Landscaping with Colorful, Low-maintenance Ground Covers. Storey Pub., 2007.
Precaución: Estas citas no son 100% exactas.