In academic papers, authors sometimes use shorthand like WALS-Carol.&.Fernanda.(316) to point to a specific entry in their own "Works Cited" list.
The phrase appears to be a specific citation or reference key, likely from a bibliography or a linguistic database. While "WALS" commonly refers to the World Atlas of Language Structures , this exact string is not a standard chapter or feature title in the main WALS database. WALS-Carol.&.Fernanda.(316)
Carol and Fernanda are common names in Brazilian linguistics. This may be a reference to a guide on Portuguese dialects or indigenous languages of Brazil documented in the WALS reference database. In academic papers, authors sometimes use shorthand like
Based on the names and the context of language structures, this "good guide" could be referring to: In academic papers