1968
Dave H. and Reba W. Williams, 1935
Tamarind Institute, 1966
Tamarind Institute, 1970
Dave H. and Reba W. Williams, 1885
Dave H. and Reba W. Williams, 1950
Dave H. and Reba W. Williams, 1961
Dave H. and Reba W. Williams, 1939
Dave H. and Reba W. Williams, 1956
Dave H. and Reba W. Williams, 1943
