Não informado. (1916). Cornell extension bulletin. Cornell University, Extension Service.
Style de citation Chicago (17e éd.)Não informado. Cornell Extension Bulletin. Ithaca, NY: Cornell University, Extension Service, 1916.
Style de citation MLA (8e éd.)Não informado. Cornell Extension Bulletin. Cornell University, Extension Service, 1916.
Attention : ces citations peuvent ne pas être correctes à 100%.