De Spínola, A. (1974). Portugal e o futuro (3e editie.).
Chicago Style (17th ed.) CitationDe Spínola, António. Portugal E O Futuro. 3e editie. 1974.
MLA (8th ed.) CitationDe Spínola, António. Portugal E O Futuro. 3e editie. 1974.
Warning: These citations may not always be 100% accurate.