The power for change : botanic gardens as centres of excellence in education for sustainability : proceedings of the 4th International Congress on Education in Botanic Gardens, 8-12 November 1999, hosted by the Tropical Botanic Garden and Research Institute, Thiruvananthapuram, Kerala, India /
International Congress on Education in Botanic Gardens(4th :1999 :Tropical Botanic Garden and Research Institute, Thiruvananthapuram, India)
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Abraham, T. K.
Thomas, Jacob.
Tropical Botanic Garden and Research Institute (Trivandrum, India)
Botanic Gardens Conservation International.
Richmond, Surrey : Botanic Gardens Conservation International,
2001.