The Impossible yearsmusical workThe Impossible yearsMargo, MitchellComposerMargo, MitchComposerMargo, PhilComposerMargo, PhilComposerMedress, HankComposerMedress, HankComposer[1967]printscoregeneralMargo, Mitchell, Composer; Margo, Phil, Composer; Medress, Hank, ComposerAdditional composer: Jay SiegelM1508 Impossible yearsloc.natlib.m1508.27736http://lcweb2.loc.gov/diglib/ihas/loc.natlib.m1508.27736/item.html?ID=2773627736M1508 Impossible yearsIt's Showtime! Sheet Music from Stage and Screenhtml/songsinshows/songsinshows-home.htmlm1508m1508showsloc.natlib.m1508.27736http://lcweb2.loc.gov/diglib/ihas/loc.natlib.m1508.27736/Music Division, Library of CongressDLC150709loc.natlib.m1508.27736