Cita APA (7th ed.)
Ashworth, J. M. (1975). Outline studies in biology. Chapman and Hall.
Cita Chicago (17th ed.)
Ashworth, John M. Outline Studies in Biology. London: Chapman and Hall, 1975.
Cita MLA (9th ed.)
Ashworth, John M. Outline Studies in Biology. Chapman and Hall, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.