Cita APA (7th ed.)

Ramos, D. E. (1998). Walnut production manual. University of California.

Cita Chicago (17th ed.)

Ramos, David E. Walnut Production Manual. Berkeley: University of California, 1998.

Cita MLA (9th ed.)

Ramos, David E. Walnut Production Manual. University of California, 1998.