Columbia subject headings:
Anarchists--Spain--Madrid--Biography.
Mera, Cipriano, 1897-1975.
Soldiers--Spain--Biography.
Spain. Ejército--Spain--Biography.
Harvard subject headings:
Princeton subject headings:
Anarchists--Spain--Madrid--Biography.
Mera, Cipriano, 1897-1975.
Soldiers--Spain--Biography.
Spain. Ejército--Spain--Biography.