関連ワード:  when to use et al in citations apa    when to use et al in citation apa 7    when to use et al in references apa    when to use et al in bibliography apa    when to use et al in references apa 7    when to use et al in text citations apa    when to use et al in text citation apa 7    when to use et al in apa reference list    when to put et al in apa citation    when to use et al in reference list apa 7