@misc{10498/13172,
year = {1921},
month = {3},
url = {http://hdl.handle.net/10498/13172},
publisher = {Madrid :
   
     Imp. de M. Rojas,},
booktitle = {Tomo 68},
title = {El siglo médico
   Tomo 68 Nº3510 (19/03/1921)},
author = {},
}