El soldado moderno
By: traductor: F. Negrón Rodríguez.
Contributors: Negrón Rodríguez, F.; United States. War Dept.
Publisher: Tip. Cantero, Fernández & Co.
Published: 1918
Place of publication: San Juan, P.R
Language: spa
Number of pages: 113
Subjects: United States. Army -- Handbooks, manuals, etc.