You can order this book which has both words and music:
Clancy Brothers and Tommy Makem Song Book Paperback
– (1964) by (Author), (Author)
Over 50 songs from their repertoire - Gaelic folksongs, Irish rebel songs, laments, and drinking songs. Includes: Jug Of Punch, Carrickgergus, Irish Rover, Brennan On The Moor, Lewis Bridal Song (Mairi's Wedding), The Parting Glass, The Rising Of The Moon, Legion Of The Rearguard, and Barnyards Of Delgaty.
It is reasonably priced.
My copy was autographed by the four Clancy Brothers and Tommy Makem when I saw them in concert in 1985.
There is also a later songbook (which I also own):
The Irish Songbook
– (1992) by Joy Graeme (Author), Pete Hamill (Foreword), Robert DeCormier (Collaborator), Tommy Makem (Collaborator), The Clancy Brothers (Collaborator)
(Vocal Songbooks): 75 Songs (Songs collected, adapted and have been sung by The Clancy Brothers and Tommy Makem ; The Irish Echo) Paperback – January 1, 1992
You might want to get this book:Irish Pub Songs (Piano/Vocal/Guitar Songbook) Paperback – December 1, 2006
(Piano/Vocal/Guitar Songbook). Grab a pint and this songbook for an evening of Irish fun! 40 songs, including: All for Me Grog * Black Velvet Band * The Fields of Athenry * I Never Will Marry * I'm a Rover and Seldom Sober * The Irish Rover * Jug of Punch * Leaving of Liverpool * A Nation Once Again * The Rare Ould Times * Whiskey in the Jar * Whiskey, You're the Devil * and more.