APA (7th ed.) Citation

Carvalho, c. p. P. d. (1940). Portugal. Shell News.

Chicago Style (17th ed.) Citation

Carvalho, coligido por Pereira de. Portugal. Shell News, 1940.

MLA (8th ed.) Citation

Carvalho, coligido por Pereira de. Portugal. Shell News, 1940.

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