APA-viite

Korah, V. (1968). Monopolies and restrictive practices. Penguin books.

Chicago-tyylinen lähdeviittaus

Korah, Valentine. Monopolies and Restrictive Practices. Englsnd: Penguin books, 1968.

MLA-viite

Korah, Valentine. Monopolies and Restrictive Practices. Penguin books, 1968.