APA (7th ed.) Citation

Heldt, F. H., & Heldt, C. (1960). Belgian Congo. Belgian Congo and Ruanda-Urundi Information and Public Relations Office.

Chicago Style (17th ed.) Citation

Heldt, F. H., and C. Heldt. Belgian Congo. Brussels: Belgian Congo and Ruanda-Urundi Information and Public Relations Office, 1960.

MLA (9th ed.) Citation

Heldt, F. H., and C. Heldt. Belgian Congo. Belgian Congo and Ruanda-Urundi Information and Public Relations Office, 1960.