APA-viite (7. p.)

HELFERT, E. A. (1196). Techniques of financial analysis. Richard D. Irwin.

Chicago-viite (17. p.)

HELFERT, Erich A. Techniques of Financial Analysis. Homewood, Ill: Richard D. Irwin, 1196.

MLA-viite (9. p.)

HELFERT, Erich A. Techniques of Financial Analysis. Richard D. Irwin, 1196.