APA-ийн эшлэл(7 дахь хэвлэлт)

Knapp, P., & Spector, A. J. (2011). Crisis and change today: Basic questions of Marxist sociology (2nd ed.). Rowman & Littlefield Publishers.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Knapp, Peter, ба Alan J. Spector. Crisis and Change Today: Basic Questions of Marxist Sociology. 2nd ed. Lanham, Md.: Rowman & Littlefield Publishers, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Knapp, Peter, ба Alan J. Spector. Crisis and Change Today: Basic Questions of Marxist Sociology. 2nd ed. Rowman & Littlefield Publishers, 2011.