In 1972 Chess Digest pushed White in an article that went 1 e4, c5 2 b4, bxc 3 c4 and proceeded to analyze Black lines taking that pawn en passant and also playing 3.....e5. How do I remember ? I was playing in a high school match and that's the opening my opponent played against me. Unfortunately he got a very big edge from the opening as I was unfamiliar with it.
Opening Books with analysis of the Sicilian Wing Gambit?

I can't give you help on a book, but when I first started learning chess, I was looking at Anna Muzychuk's games for ideas, and I saw the wing gambit show up multiple times - the pattern was really vivid, and therefore memorable (sac, sac, take - whole queenside developed!). You may be able to learn a few things by looking through some of her games with an engine to help you.
Unfortunately, it's a rarely played, much maligned, and therefore under-analyzed opening. Best of luck!

This might interest you. It's sort of a delayed version with 2.a3
https://www.newinchess.com/The_Modern_Anti_Sicilian-p-7393.html
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Title says it all. Are there any opening books with chapters on the Wing Gambit in the Sicilian, ideally from White's point of view?
The only one I know of is Joe Gallagher's Beating the Anti-Sicilians; but that's focussed on Black's defenses, rather than White's attack. There's also the Gambiteer chessbase file by Nigel Davis, but it's not that much analysis in that.
Is there anything else?