%0 Journal Article %T Book review: Michele Zappavigna, Searchable Talk: Hashtags and Social Media Metadiscourse %A Mark McGlashan %J Discourse & Communication %@ 1750-4821 %D 2019 %R 10.1177/1750481319842460 %U https://journals.sagepub.com/doi/full/10.1177/1750481319842460