Não informado. (1936). Bulletin of the California Department of Agriculture. California Department of Agriculture.
Citação do estilo Chicago (17ª ed.)Não informado. Bulletin of the California Department of Agriculture. Sacramento, Calif: California Department of Agriculture, 1936.
Citação MLA (8ª ed.)Não informado. Bulletin of the California Department of Agriculture. California Department of Agriculture, 1936.
Atenció: Aquestes cites poden no estar 100% correctes.