Cita APA (7a ed.)

Ley, C. D. (1947). Portuguese voyages 1498-1663. Dent & Sons.

Cita Chicago Style (17a ed.)

Ley, Charles D. Portuguese Voyages 1498-1663. London: Dent & Sons, 1947.

Cita MLA (9a ed.)

Ley, Charles D. Portuguese Voyages 1498-1663. Dent & Sons, 1947.