RUHSAM, M. “Cacti of Eastern Brazil. N. Taylor & D. Zappi. Kew: Royal Botanic Gardens, Kew. 2004. 499pp. ISBN 1 84246 056 0. £49.95 (hardback)”. Edinburgh Journal of Botany 61, no. 2-3 (August 16, 2005): 198–201. Accessed September 3, 2026. https://journals.rbge.org.uk/ejb/article/view/1829.