Cita APA (7th ed.)

Helfert, E. A. (1967). Techniques of financial analysis (Rev. ed.). R.D. Irwin.

Cita Chicago (17th ed.)

Helfert, Erich A. Techniques of Financial Analysis. Rev. ed. Homewood, Ill.: R.D. Irwin, 1967.

Cita MLA (8th ed.)

Helfert, Erich A. Techniques of Financial Analysis. Rev. ed. R.D. Irwin, 1967.