What to do if an example can't be found for a source to put in the References list?
Look for the example in the following:
If a perfect fit can't be found--do not panic!
In these situations, The APA Manual suggests to choose the example that is most like your source and follow that format. Here's a general example:
Author. (Date of publication). Title of resource [format of online resource] Retrieval data.
Tip: The [format of online resource] seems to be used with more recent online technologies, e.g. blog, podcast, email discussion forum, You Tube, etc.