1971, . Box 10, Folder 4 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994WATER AND RELATED POLITICAL ACTIVITIESCorrespondence
1971-1979, . Box 4, Folder 10 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994FARM WORKERSCorrespondence
1972, . Box 2, Folder 5 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994YELLOWSHEETS AND LETTERS TO THE EDITORYellowsheets
1972, . Box 10, Folder 5 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994WATER AND RELATED POLITICAL ACTIVITIESCorrespondence
1973, . Box 2, Folder 6 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994YELLOWSHEETS AND LETTERS TO THE EDITORYellowsheets
1973-1974, . Box 10, Folder 6 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994WATER AND RELATED POLITICAL ACTIVITIESCorrespondence
1974-1975, . Box 32, Folder 5 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994MEDICAL ISSUESCorrespondence
1974-1979, . Box 2, Folder 7 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994YELLOWSHEETS AND LETTERS TO THE EDITORYellowsheets
1975-1976, . Box 11, Folder 1 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994WATER AND RELATED POLITICAL ACTIVITIESCorrespondence
1976-1979, . Box 32, Folder 6 Collection Context Lyrasis Special Collections Ben Yellen Papers, 1945-1994MEDICAL ISSUESCorrespondence
