Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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