• Catechism of the Catholic Church - Celebration the Church's Liturgy I
• Catechism of the Catholic Church - Celebrating the Church's Liturgy II
• Catechism of the Catholic Church - The liturgy -- Work of the Holy Trinity
• The General Instruction of the Roman Missal
• CIN - Catholic Worship
• CIN - Sunday Is The Lord's Day
• CIN - Sundays and Holy Days
• Ancient Christian Exorcism Liturgy - fourth c. CE, Greek and Coptic text
  

Related: Liturgy - Church Documents - Calendars and Lectionaries
Liturgical Seasons - Music and Worship - Art and Liturgy - Symbols and Rituals