APA ציטוט
Pytel, A., & Singer, F. L. (1987). Strength of materials (4th ed.). Addsion-Wesley.
Chicago Style (17th ed.) Citation
Pytel, Andrew, and Ferdinand Leon Singer. Strength of Materials. 4th ed. california: Addsion-Wesley, 1987.
ציטוט MLA
Pytel, Andrew, and Ferdinand Leon Singer. Strength of Materials. 4th ed. Addsion-Wesley, 1987.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.