APA (7th ed.) Citation

Duggan, M. B. (1990). Natural frequency and damping behavior of composite materials. [publisher not identified].

Chicago Style (17th ed.) Citation

Duggan, Matthew Brace. Natural Frequency and Damping Behavior of Composite Materials. [Place of publication not identified]: [publisher not identified], 1990.

MLA (9th ed.) Citation

Duggan, Matthew Brace. Natural Frequency and Damping Behavior of Composite Materials. [publisher not identified], 1990.