Cita APA (7th ed.)

Brooks, R. M., & Olmo, H. P. (1972). Register of new fruit and nut varieties (2a. ed.). University of California Press.

Cita Chicago (17th ed.)

Brooks, Reid M., i H. P. Olmo. Register of New Fruit and Nut Varieties. 2a. ed. Londres: University of California Press, 1972.

Cita MLA (9th ed.)

Brooks, Reid M., i H. P. Olmo. Register of New Fruit and Nut Varieties. 2a. ed. University of California Press, 1972.