Gaya APA
Helfert, Erich A.. (1989).
Techniques of financial analysis, 6th ed. (6th ed.).
New York:
Irwin.
Gaya Chicago
Helfert, Erich A..
Techniques of financial analysis, 6th ed..
6th ed.
New York:
Irwin,
1989.
Text.
Gaya MLA
Helfert, Erich A..
Techniques of financial analysis, 6th ed..
6th ed.
New York:
Irwin,
1989.
Text.
Gaya Turabian
Helfert, Erich A..
Techniques of financial analysis, 6th ed..
6th ed.
New York:
Irwin,
1989.
Print.