Cita APA (7th ed.)

Ferguson, L., & Grafton-Cardwell, E. E. (2014). Citrus production manual (1a. ed.). University of California.

Cita Chicago (17th ed.)

Ferguson, Louise, i Elizabeth E. Grafton-Cardwell. Citrus Production Manual. 1a. ed. Oakland: University of California, 2014.

Cita MLA (9th ed.)

Ferguson, Louise, i Elizabeth E. Grafton-Cardwell. Citrus Production Manual. 1a. ed. University of California, 2014.