APA (7th ed.) Citation

Ashbridge, R. I. D. (1914). Civil engineering specifications and contracts. American technical society.

Chicago Style (17th ed.) Citation

Ashbridge, Richard I. D. Civil Engineering Specifications and Contracts. Chicago: American technical society, 1914.

MLA (8th ed.) Citation

Ashbridge, Richard I. D. Civil Engineering Specifications and Contracts. American technical society, 1914.