Jenkins, Dale W. and Williamson, Francis S. L. 1973. Collection and analysis of remotely-sensed data from the Rhode River Estuary Watershed. NASA CR-62094. Wallops Island, VA: National Aeronautics and Space Administration.
Studies of the avifauna on Amchitka Island, Alaska : annual progress report June, 1968-July, 1969 / by Francis S.L. Williamson and William B. Emison (Chesapeake Bay Center for Environmental Studies, Smithsonian Institution)
Classification of wetland vegetation using small scale color infrared imagery : annual report, October 9, 1973 to December 20, 1974 / Francis S.L. Williamson, principal investigator ; staff, B.L. Rice, Deborah Ford Cassel
Amchitka Bioenvironmental Program annual progress report on studies of the avifauna on Amchitka Island, Alaska, to U.S. Atomic Energy Commission, Nevada Operations Office, contract AT (26-1)-171, July 1, 1969-June 30, 1970 / by Francis S.L. Williamson, William B. Emison and Clayton M. White
Progress report, 15 December 1971 through 15 June 1972, for the Rhode River program, Chesapeake Bay Center for Environmental Studies, Smithsonian Institution, the Johns Hopkins University, the University of Maryland / Francis S.L. Williamson
Investigations on classification categories for wetlands of Chesapeake Bay using remotely sensed data : annual report, October 10, 1972 to October 9, 1973 / Francis S.L. Williamson, principal investigator ; staff, Susan Weck Welles, Deborah Ford, Barbara Rice