Books about the Charco del Ingenio on sale at the Botanical Garden  
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Pocket Guide to the Wild Flowers of San Miguel de Allende / Flores Silvestres de San Miguel de Allende. Text and photos by Richard Cretcher with the collaboration of the Botanical Garden. Authors publication, San Miguel de Allende, 2010. 2nd edition.
Bilingual field guide with photographs for the identification of flowering plants of the Charco del Ingenio and the San Miguel region, first published in 2006.