What has the author Edwin Arlington Robinson written?

Edwin Arlington Robinson has written:
'Modred'
'The glory of the Nightingales'
'An introduction to Edwin Arlington Robinson'
'Amaranth'
'The essential Robinson'
'Vachel Lindsay'
'Tilbury Town, selected poems'
'The porcupine, a drama in three acts'
'Selected Letters of Edward Arlington Robinson'
'Collected poems of Edwin Arlington Robinson' -- subject(s): Protected DAISY
'The Man Against the Sky: A Book of Poems'
'Selected poems of Edwin Arlington Robinson'
'Cavender's house'
'Talifer'
'Selected letters of Edwin Arlington Robinson' -- subject(s): Correspondence, Poets, American, American Poets
'Lancelot' -- subject(s): Poetry, Lancelot (Legendary character)
'Poems' -- subject(s): Adaptations, Arthurian romances, Knights and knighthood, Lancelot (Legendary character), Merlin (Legendary character), Poetry, Tristan (Legendary character), Wizards
'Merlin'
'Untriangulated Stars'
'The Peterborough idea'
'The prodigal son'
'Edwin Arlington Robinson's letters to Edith Brower' -- subject(s): American Poets, Correspondence, Poets, American
'A Tilbury score'
'Collected poems of Edwin Arlington Robinson' -- subject(s): Arthurian romances, Adaptations
'Letters of Edwin Arlington Robinson to Howard George Schmitt'
'The town down the river'
'The Porcupine'
'Selections from the Letters of Thomas Sergeant Perry'