Groves, R. (1985). The crayfish: Its nature and nurture. Fishing News Books.
Cita Chicago (17th ed.)Groves, Roy. The Crayfish: Its Nature and Nurture. Farnham: Fishing News Books, 1985.
Cita MLA (9th ed.)Groves, Roy. The Crayfish: Its Nature and Nurture. Fishing News Books, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.