R. Hegnauer
S. K. Dutta
B. J. Richardson
International Symposium on Chemistry in Evolution and Systematics (1972 Strasbourg, France)
Ralph E. Alston
F. A. Bisby
Peter G. Waterman
M. Goodfellow
Nobel Symposium Södergarn 1973.
A. Douglas Kinghorn
Martyn J. Dibben
J. B. Harborne
Carol Ann Bonner
Wilhelm Barthlott
Domingo A. Madulid
Robert Hegnauer
Edward Tyson Reichert
Unknown Author
D.A. Young