I [recently asked a question about on- and kun-yomi](https://japanese.stackexchange.com/questions/36129/similar-%E9%9F%B3-%E8%A8%93%E8%AA%AD%E3%81%BF-coincidence-or-something-more) and in building the title guessed at how the two compounds involved could be contracted; landing on 「音・訓読み」.

Is this indeed the correct way of abbreviating something like 「音読み・訓読み」, and if so, when can it be used?

If not; what construction should be used?