Most likely refers to the World Atlas of Language Structures , a large database of structural properties of languages.

A or feature ID (though WALS features currently only go up to 144). 📘 Potential Sources

Instead, the structure suggests a reference to a specific source used within WALS or a related linguistic study. 🔍 Breakdown of the Reference

Based on the names and the context of language structures, this "good guide" could be referring to:

💡 If you have a snippet of the text where this was found or the name of the language it describes, I can help you track down the exact article or chapter. AI responses may include mistakes. Learn more The World Atlas of Language Structures - WALS