Appears in 156 hymnals Composer and/or Arranger: J. B. O. ClemmTune Key: A Flat MajorIncipit: 33321 11216 55113 Used With Text: Cristo está buscando obreros
Appears in 47 hymnalsTune Sources: De la "Coleccion española"Tune Key: D MajorIncipit: 34555 54565 12333 Used With Text: ¡Despertad, despertad, oh cristianos!