Brown, D. M. (1985). Telephone Reference Questions: A Characterization by Subject, Answer Format, and Level of Complexity.
Chicago-Zitierstil (17. Ausg.)Brown, Diane M. Telephone Reference Questions: A Characterization by Subject, Answer Format, and Level of Complexity. 1985.
MLA-Zitierstil (9. Ausg.)Brown, Diane M. Telephone Reference Questions: A Characterization by Subject, Answer Format, and Level of Complexity. 1985.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.