APA-viite

Helfert, E. A. (1991). Techniques of financial analysis (7th ed.). Jaico.

Chicago-tyylinen lähdeviittaus

Helfert, Erich A. Techniques of Financial Analysis. 7th ed. Bombay: Jaico, 1991.

MLA-viite

Helfert, Erich A. Techniques of Financial Analysis. 7th ed. Jaico, 1991.