Excerpt - Back Matter: "... S.A., 1981 Holttum, R.E., Orchids of Malaya (in A Revised Flora of Malaya 3rd eition), Government Printing Office, Singapore, 1964 Hawkes, A.D., Encyclopedia of Cultivated Orchids, Faber and Faber Ltd., London , U.K. ..."
Excerpt - Back Matter: "... and Conservation Society of South Africa. Hawkes, A. D. 1965. Encyclopedia of Cultivated Orchids. London, England: Faber and Faber. Hennessy, E. F., and T. ..."