Sibbett, G. S., & Ferguson, L. (2005). Olive production manual (2a. ed.). University of California.
Chicago Style (17th ed.) ZitazioaSibbett, G. Steven, eta Louise Ferguson. Olive Production Manual. 2a. ed. Richmond: University of California, 2005.
MLA (9th ed.) ZitazioaSibbett, G. Steven, eta Louise Ferguson. Olive Production Manual. 2a. ed. University of California, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.