APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.