Hey Bro. I'm more of the strand that likes to look at entire works and "reverse engineer" the process.
If you look at the works of the early church fathers you will see all 27 books of the NT extensively quoted and in many more cases paraphrased or alluded to.
Because of their extensive use of Holy Scriptures, we can deduce that is fount they went to refute hererics, provide commentary and encourage, exhort and rebuke the faithful.
Best work which quotes 25 of 27 books is Against Heresies by St Irenaeus.
New Advent Encyclopedia does a great job of listing and linking the associated Bible verses within the text.
CHURCH FATHERS: Against Heresies (St. Irenaeus)
So did they say Sola Scriptura? No, but they definitely applied the principal in action.
Edit: good site where some dude actually went through hundreds of works to show how much of the NT books that ECFs quoted.
Early Christian NT References