APA (7. basım) Alıntı

Helfert, E. (1987). Techniques of financial analysis (6th.). Universal Book Stall.

Chicago Style (17. basım) Atıf

Helfert, Erich. Techniques of Financial Analysis. 6th. New Delhi: Universal Book Stall, 1987.

MLA (9th ed.) Atıf

Helfert, Erich. Techniques of Financial Analysis. 6th. Universal Book Stall, 1987.