Butler, R. N. (1994). Rational use of broad-spectrum antibiotics in the elderly: Roundtable discussion. Advanstar Communications.
Chicago-viite (17. p.)Butler, Robert N. Rational Use of Broad-spectrum Antibiotics in the Elderly: Roundtable Discussion. New York, N.Y.: Advanstar Communications, 1994.
MLA-viite (8. p.)Butler, Robert N. Rational Use of Broad-spectrum Antibiotics in the Elderly: Roundtable Discussion. Advanstar Communications, 1994.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.