Hojas de ruta is a 4-book series with 4 primary works first released in 1975 with contributions by Jorge Bucay.
1975 • 3 Readers • 160 pages • 3
2001 • 1 Reader • 303 pages • 4
2002 • 1 Reader • 249 pages • 4
2002 • 1 Reader • 221 pages
2010 • 1 Reader • 403 pages • 4