Transducers and Arrays for Underwater Sound John L. Butler, Charles H. Sherman E-Book (pdf)

The Big Book of Christmas Novels, Stories, Myths & Carols Mark Twain, Rudyard Kipling, Vernon Lee E-Book (epub)

The Perfect Christmas Library: A Christmas Carol, The Cricket on the Hearth, A Christmas Sermon, Twelfth Night...and Many More (200 Stories) Annie Roe Carr, Henry Van Dyke, Ellis Parker Butler E-Book (epub)