APA-ийн эшлэл(7 дахь хэвлэлт)

Brown, P. W., Wilson, L. S., & Mitchell, S. (1994). Humanities doctorates in the United States: 1991 profile. National Academy Press : Available from Survey of Humanities Doctorates.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Brown, Prudence W., Linda S. Wilson, ба Susan Mitchell. Humanities Doctorates in the United States: 1991 Profile. Washington, D.C.: National Academy Press : Available from Survey of Humanities Doctorates, 1994.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Brown, Prudence W., et al. Humanities Doctorates in the United States: 1991 Profile. National Academy Press : Available from Survey of Humanities Doctorates, 1994.