APA (7th ed.) Citation

Lilly, W. E. (1939). A modified theory of elasticity.

Chicago Style (17th ed.) Citation

Lilly, W. E. A Modified Theory of Elasticity. 1939.

MLA (9th ed.) Citation

Lilly, W. E. A Modified Theory of Elasticity. 1939.

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