APA (7th ed.) Citation

(1956). De kolenindustrie in 1956. Brussel: Belgisch Kolenbureau.

Chicago Style (17th ed.) Citation

De Kolenindustrie in 1956. Brussel: Belgisch Kolenbureau, 1956.

MLA (8th ed.) Citation

De Kolenindustrie in 1956. Brussel: Belgisch Kolenbureau, 1956.

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