APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Helfert, Erich A. Techniques of Financial Analysis. 7. ed. Burr Ridge, Illinois [u.a.]: Irwin, 1991.

MLA (9th ed.) Citation

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