Vingerhoets, A. J. J. M., Why only humans weep unravelling the mysteries of tears / Ad Vingerhoets. - Oxford : Oxford University Press, (c)2013. - 1 online resource (291 pages) : illustrations (black and white, and colour). Illustrations on inside covers. Includes bibliographies and index. ISBN: 9780191639975 Subjects--Topical Terms: Crying. Index Terms--Genre/Form: Electronic Books. LC Class. No.: BF575 / .W496 2013