Friedrich G. Barth
India) International Symposium on Pollination in Tropics (1993 Bangalore
Stefan Vogel
Müller, Hermann
A. J. Solomon Raju
Andrew R. Moldenke
David W. Roubik
Thomas R. Jahns
Keith S. Delaplane
M. D. Levin
Andreas Bertsch
Masters John Godfery
John Brand Free
Unknown Author
George H. Vansell
ARS Pollination Research Workshop (1991 Denver, Colo.)
National Research Council (US)
John Muo Kasina