Joyce, D. (1995). The Plant guide. Conran Octopus.
Cita Chicago (17th ed.)Joyce, David. The Plant Guide. London: Conran Octopus, 1995.
Cita MLA (9th ed.)Joyce, David. The Plant Guide. Conran Octopus, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.