APA-ийн эшлэл(7 дахь хэвлэлт)

Helfert, E. A. (1997). Techniques of financial analysis: A modern approach (9thed.). Irwin.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Helfert, Erich A. Techniques of Financial Analysis: A Modern Approach. 9thed. Chicago: Irwin, 1997.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Helfert, Erich A. Techniques of Financial Analysis: A Modern Approach. 9thed. Irwin, 1997.