Booth-Butterfield, M. (1991). Communication, cognition, and anxiety. Sage.
Lua i Stíl Chicago (17ú heag.)Booth-Butterfield, Melanie. Communication, Cognition, and Anxiety. Newbury Park, Calif: Sage, 1991.
Lua MLA (9ú heag.)Booth-Butterfield, Melanie. Communication, Cognition, and Anxiety. Sage, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.