APA (7th ed.) Citation

Héderváry, C. d. (1957). Construction Workers' Union Congress.

Chicago Style (17th ed.) Citation

Héderváry, Claire de. Construction Workers' Union Congress. 1957.

MLA (8th ed.) Citation

Héderváry, Claire de. Construction Workers' Union Congress. 1957.

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