APA (7th ed.) Citation

Vollrath, F., & Porter, D. (2009). Silks as ancient models for modern polymers.

Chicago Style (17th ed.) Citation

Vollrath, F., and D. Porter. Silks as Ancient Models for Modern Polymers. 2009.

MLA (9th ed.) Citation

Vollrath, F., and D. Porter. Silks as Ancient Models for Modern Polymers. 2009.

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