"1900 - 1999" . . "Briefsammlung." . . "Records and correspondence" . "Records and correspondence"@en . . . "Family letters of Robert and Elinor Frost" . "Family letters of Robert and Elinor Frost"@en . . . . . . . . . . "Brieven (vorm)" . . . . . . . . . . "Family letters" . . . . . . . . . . . "[Briefe, engl.] Family letters" . . . . . . . "[Briefe]" . . . "Poets, American Correspondence 20th century." . . "Authors' spouses Correspondence United States." . .