APA (7th ed.) Citation

Popa, N., Cristescu, C., & Bancila, R. Some Considerations and Discussions about the New Romanian Standard for Steel Railway Bridges.

Chicago Style (17th ed.) Citation

Popa, Nicolae, Constantin Cristescu, and Radu Bancila. Some Considerations and Discussions About the New Romanian Standard for Steel Railway Bridges.

MLA (9th ed.) Citation

Popa, Nicolae, et al. Some Considerations and Discussions About the New Romanian Standard for Steel Railway Bridges.

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