APA (7th ed.) Citation

Hellen, T. (2007). How to use beam, plate and shell elements. NAFEMS.

Chicago Style (17th ed.) Citation

Hellen, Trevor. How to Use Beam, Plate and Shell Elements. Glascow: NAFEMS, 2007.

MLA (9th ed.) Citation

Hellen, Trevor. How to Use Beam, Plate and Shell Elements. NAFEMS, 2007.

Warning: These citations may not always be 100% accurate.