Gaya APA
Helfert, Erich A.. (1967).
Techniques of financial analysis .
Illinois:
Richard D. Irwin.
Gaya Chicago
Helfert, Erich A..
Techniques of financial analysis.
Illinois:
Richard D. Irwin,
1967.
Text.
Gaya MLA
Helfert, Erich A..
Techniques of financial analysis.
Illinois:
Richard D. Irwin,
1967.
Text.
Gaya Turabian
Helfert, Erich A..
Techniques of financial analysis.
Illinois:
Richard D. Irwin,
1967.
Print.