Buchner, R. P. (2012). Prune production manual. University of California.
Cita Chicago (17th ed.)Buchner, Richard P. Prune Production Manual. Richmond, USA: University of California, 2012.
Cita MLA (9th ed.)Buchner, Richard P. Prune Production Manual. University of California, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.