Cita APA (7a ed.)

Grotius, H., Hakluyt, R., Welwood, W., & Armitage, D. (2004). The free sea. Liberty Fund.

Cita Chicago Style (17a ed.)

Grotius, Hugo, Richard Hakluyt, William Welwood, y David Armitage. The Free Sea. Indianapolis, Ind.: Liberty Fund, 2004.

Cita MLA (9a ed.)

Grotius, Hugo, et al. The Free Sea. Liberty Fund, 2004.