ScoresOnDemand http://www.musicsalesclassical.com/OnDemand Library of Digital Perusal Scores
John Harbison Mottetti di Montale (1980)
Sample begins on the next page
Buy materials in North America and the world except for Europe, Australia, and New Zealand http://www.halleonard.com/product/viewproduct.do?itemid=50480303 in Europe, Australia, and New Zealand http://www.musicroom.com/se/id_no/00045261/details.html