Efficient way to import many magazine issues

I'd like to enter several hundred National Geographic Magazine issues (about four decades worth) into my library. What's an efficient way to do this?

I can very easily produce a CSV with titles like "National Geographic Magazine January 2000" and fixed data like publisher, ISSN, and media. But the issues don't have ISBN, UPC, or EAN identifiers and it would be labor intensive to hand-edit article titles or other per-issue metadata. Will the dated title plus fixed data be enough for a LibraryThing import to match these magazine articles with the relevant Work?

The likeliest for your magazines to be auto-combined with existing works is to format the titles as existing ones or very close to it, but it could be not much combining has been done and most are scattered as separate works because the only series I found has only a few copies each https://www.librarything.com/nseries/2158/National-Geographic-Magazine. Perhaps there are some where more are combined together, but those haven't been made into a series, I haven't searched thoroughly, just scanned for possible examples.

As for importing from CSV, it needs to follow the sample one on import page completely, no missing no additional columns

Note that the autocombiner only checks the first 20 or so characters OR to the first colon, whichever comes first. Therefore many, if not all, of your entries will need separating and combining.