Beltrán, J. (2017). Nasim, Omar W. Observing by Hand: Sketching the Nebulae in the Nineteenth Century, Chicago y Londres, The University of Chicago Press, 2014, 304 páginas [ISBN: 978-0-226-08437-4]. Asclepio, 69(1), p181. Recuperado a partir de https://asclepio.revistas.csic.es/index.php/asclepio/article/view/736