APA

Kerr P., . (1993). A philosophical investigation. New York: Farrar, Straus, Giroux.

Chicago

Kerr Philip, . 1993. A philosophical investigation. New York: Farrar, Straus, Giroux.

Harvard

Kerr P., . (1993). A philosophical investigation. New York: Farrar, Straus, Giroux.

MLA

Kerr Philip, . A philosophical investigation. New York: Farrar, Straus, Giroux. 1993.