Não informado. (1919). Bee World. International Bee Research Association.
Style de citation Chicago (17e éd.)Não informado. Bee World. Bucks, Inglaterra: International Bee Research Association, 1919.
Style de citation MLA (8e éd.)Não informado. Bee World. International Bee Research Association, 1919.
Attention : ces citations peuvent ne pas être correctes à 100%.