"Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit."
Matt. 28:18
"The grace of the Lord Jesus Christ, and the love of God, and the fellowship of the Holy Spirit, be with you all."
Cor. 13:14
In the name of the Father, and of the Son, and of the Holy Spirit
www.vatican.va/archive/catechism/p1s2c1p2.htm#I
The Revelation of God as Trinity www.vatican.va/archive/catechism/p1s2c1p2.htm#II
The Holy Trinity: Biblical Proofs
http://web.archive.org/web/20040217141524/http://ic.net/~erasmus/RAZ99.HTM
The Deity of the Holy Spirit (Fathers of the Church) www.cin.org/users/jgallegos/hs_god.htm
Q&A on the Trinity www.ewtn.com/faith/teachings/GODA22A.HTM
The Holy Trinity in the Teaching of the Faith
www.vatican.va/archive/catechism/p1s2c1p2.htm#III
Our Living and True God - The Father, Son and Holy Ghost
www.catholicdoors.com/teaching/book1/1-2.htm
God in Three Persons www.catholic.com/library/God_in_Three_Persons.asp
The Triune God: Rich in Relationships
The Father and the Holy Spirit (St Thomas Aquinas)
http://praiseofglory.com/filioque.htm/summa.htm
The Holy Trinity (St Thomas Aquinas) www.ewtn.com/library/Theology/SIPLIGHT.HTM
The Holy Trinity http://ewtn.com/faith/teachings/GODA22.htm
www.cin.org/users/jgallegos/triune.htm
The Holy Trinity (Filioque) www.cin.org/users/jgallegos/filio.htm
Catholic Doctrine on the Holy Trinity
www.therealpresence.org/archives/Trinity/Trinity_001.htm
The Doctrine of the Trinity
www.iclnet.org/pub/resources/text/cri/cri-nwsl/web/crn0063a.html
The Trinity www.catholic.com/library/Trinity.asp
One Mystery of Faith http://praiseofglory.com/filioque.htm/onefaith.htm/index.html
Trinity: To Let the Symbol Sing Again
www.americancatholic.org/Newsletters/SFS/an0599.asp
Trinity and God the Creator www.ewtn.org/library/THEOLOGY/TRINITY.HTM
Creator, Redeemer and Sanctifier
www.domestic-church.com/CONTENT.DCC/19990501/ARTICLES/mcmanahan.htm
Trinity and Women's Experience www.religion-online.org/showarticle.asp?title=86
QUIZ:
The Holy Trinity www.nccbuscc.org/catechism/quizzes/trinity