@Article{ RICO:15-21,

author = { ANA MARÍA RICO MARTÍN } ,

title = { THE EARLIEST KNOWN LIBRO DE LAS AVES QUE CAZAN BY JUAN DE SAHAGUN },

journal = { THE YALE UNIVERSITY LIBRARY GAZETTE },

year = { 2000 },

issn = { 0044-0175 },

pages = { 15-21 },

}