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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for How- -- (handy books) 3 letters:

TOS: How-___ (handy books)
TOS: How- -- (handy books)
TOS: How-___ (books for handy types)
INDEX: Handy list in the back of a book