APA (7th ed.) Citation

Sa , V. d., Proudhon , P., & Amorim Viana , P. (1960). Amorim Viana e Proudhon. Seara Nova.

Chicago Style (17th ed.) Citation

Sa , Victor de, Pierre-Joseph Proudhon , and Pedro Amorim Viana. Amorim Viana E Proudhon. Seara Nova, 1960.

MLA (8th ed.) Citation

Sa , Victor de, et al. Amorim Viana E Proudhon. Seara Nova, 1960.