APA (7th ed.) Citation

Sousa, D. d. (1973). Riscos e cores. Porto Editora.

Chicago Style (17th ed.) Citation

Sousa, Diogo de. Riscos E Cores. Porto Editora, 1973.

MLA (8th ed.) Citation

Sousa, Diogo de. Riscos E Cores. Porto Editora, 1973.

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