Armstrong, R. (1991). 1991 Biennial exhibition: Richard Armstrong [et al.]. Whitney Museum of American Art; W.W. Norton.
Chicago-Zitierstil (17. Ausg.)Armstrong, Richard. 1991 Biennial Exhibition: Richard Armstrong [et Al.]. New York; New York ; London: Whitney Museum of American Art; W.W. Norton, 1991.
MLA-Zitierstil (8. Ausg.)Armstrong, Richard. 1991 Biennial Exhibition: Richard Armstrong [et Al.]. Whitney Museum of American Art; W.W. Norton, 1991.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.