When you can cite an extrabiblical pre-Reformation source or a source from the Reformation era or later in a given context, make more of an effort to cite the pre-Reformation source. If a church father or a modern theologian could be quoted on a topic, for example, quote the church father. That helps address various problems with ignorance of church history among Protestants, neglect of pre-Reformation sources, mischaracterizations of the historical credibility of Protestantism, etc. I'm not saying you should always cite the pre-Reformation source. That would be simplistic. But it can and should be done more often than it is.
