Gotham Book Mart Collection (University of Pennsylvania) Julio Mario Santo Domingo Collection Harris Collection of American Poetry and Plays (Brown University) Poetry, 1951-1975 44 Ginsberg, Allen, 1926-1997 17 Black Sparrow Press 12 Bowles, Paul, 1910-1999 11 Burroughs, William S., 1914-1997 11 Leonard L. Milberg Collection of American Poetry 11 Crumb, R 7 Harris Collection of American Poetry and Plays (Brown University) Periodicals 7 Katzoff Collection (Brown University) 6 Sallie Bingham Center for Women's History and Culture 6 Vidal, Gore, 1925-2012 6 Ferlinghetti, Lawrence 5 Gunn, Thom 5 Burroughs, William S 4 City Lights Books 4 Harris Collection of American Poetry and Plays (Brown University) Poetry, 1926-1950 4 Harris Collection of American Poetry and Plays (Brown University) Reference Works 4 Huxley, Aldous, 1894-1963 4 Leary, Timothy, 1920-1996 4 Leonard L. Milberg Collection of Jewish American Writers 4 Phoenix Book Shop 4 American Culture Class Collection (University of Pennsylvania) 3 Carroll, Jim, 1950-2009 3 Comics Collection (University of Pennsylvania) 3 Culture Class Collection (University of Pennsylvania) 3 Gascoyne, David, 1916-2001 3 Joanna Banks Collection of African American Books (University of Pennsylvania) 3 King, Alexander, 1900-1965 3 see all ...