APA (7th ed.) Citation

Couperus, L., & Teixeira de Mattos, A. (2011). The Later Life. Project Gutenberg.

Chicago Style (17th ed.) Citation

Couperus, Louis, and Alexander Teixeira de Mattos. The Later Life. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Couperus, Louis, and Alexander Teixeira de Mattos. The Later Life. Project Gutenberg, 2011.

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