APA цитиране

Engstrom, S. P. 1. (2009). The form of practical knowledge: A study of the categorical imperative. Cambridge, Mass.: Harvard University Press.

Чикагска система за цитиране

Engstrom, Stephen P. 1955-. The Form of Practical Knowledge: A Study of the Categorical Imperative. Cambridge, Mass.: Harvard University Press, 2009.

MLA формат за цитиране

Engstrom, Stephen P. 1955-. The Form of Practical Knowledge: A Study of the Categorical Imperative. Cambridge, Mass.: Harvard University Press, 2009.

Внимание: Тези цитати може да не са 100% точни.