Murphy, Roland E. Word Biblical Commentary, Vol. 23A: Ecclesiastes. Dallas, TX: Word Books, 1992. ISBN: 9780849902222 .
6 1/4 x 9 1/4 inches, lxxxiv., 170 clean pp., includes dust jacket. Ex Bible college library with the standard extras. Good. Hardcover. 
"Among the strongest studies of the Hebrew available, from a world authority on the wisdom literature. There is a lengthy introduction and 155 pp. of commentary. Murphy works hard to do justice to the tension between joyful preacher (3:11-13; 18:15) and the frustrated skeptic (2:10ff; 4:1ff)." - Evans, A Guide to Biblical Commentaries and Reference Works.