The Trinitarian controversy / translated and edited by William G. Rusch.

Introduction. The Biblical background
The second century. The Apostolic fathers ; The Apologists ; Irenaeus of Lyon
The third century. Monarchianism ; Hippolytus and Tertullian ; Novatian ; Clement of Alexandria ; Origen
The fourth century. Arius ; Alexander of Alexandria ; The Council of Antioch ; The Council of Nicaea ; Eusebius of Caesarea ; Constantine and Constantius ; Athanasius ; Gregory of Nazianzus and Gregory of Nyssa
The fifth century : Augustine
Arius's Letter to Eusebius of Nicomedia
Arius's Letter to Alexander of Alexandria
Alexander of Alexandria's Letter to Alexander of Thessalonica
The Synodal letter of the Council of Antioch, A.D. 325
The creed of the Synod of Nicaea (June 19, 325)
The Canons of Nicaea, A.D. 325
Eusebius of Caesarea's Letter to his church concerning the Synod at Nicaea
Arius's Letter to the Emperor Constantine
Athanasius's Orations against the Arians, book 1
Gregory of Nazianzus's Third theological oration concerning the Son
Gregory of Nyssa's Concerning we should think of saying that there are not three Gods to Ablabius
Augustine of Hippo's On the Trinity, book 9.