See this online ebook:
- A Sketch of the Life and Works of the Venerable Don Bosco, Apostle of Youth, Founder of the Society of St. Francis of Sales, by M.S. Pine (Philadelphia: Salesian Press, 1916). With Imprimatur. Available in pdf, epub, mobi/kindle etc. formats at Internet Archive; may be read online at Wikisource; and also available (but with some pages restricted to members) at Forgotten Books and Forgotten Books (2d copy).