Camphell Christopher Ed. Leadership and skill development Camphell Christopher Ed.; Collins Daniel Ed. - New York Delve Publishing 2015 - xiii;300p. cm. ISBN: 9722.25 Standard No.: 128126 Source: 1496, 01/12/2015, The Book Seller Textual Subjects--Topical Terms: App Psychology Dewey Class. No.: X:87, Q5