APA (7th ed.) Citation

Helfert, E. A. (1977). Techniques of financial analysis (4.ed.). Irwin.

Chicago Style (17th ed.) Citation

Helfert, Erich Anton. Techniques of Financial Analysis. 4.ed. Homewood, Ill: Irwin, 1977.

MLA (9th ed.) Citation

Helfert, Erich Anton. Techniques of Financial Analysis. 4.ed. Irwin, 1977.