Notes on agave and furcraea in India (Dict. ec. pr., vol.1, A.602-638; vol.3, F.749)
Calcutta,The Bengal secretarial book depot,1906.
University of California Libraries (archive.org)
Evidence reported by scanner-ian-white for item notesonagavefurc00drumrich on December 21, 2006: no visible notice of copyright; stated date is 1906.