Cita APA (7th ed.)

Ruivo, M. (1972). Marine pollution and sea life. Fishing News Books.

Cita Chicago (17th ed.)

Ruivo, Mario. Marine Pollution and Sea Life. Londres: Fishing News Books, 1972.

Cita MLA (9th ed.)

Ruivo, Mario. Marine Pollution and Sea Life. Fishing News Books, 1972.