Não informado. (1988). Plant Varieties & Seeds. National Institute of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Plant Varieties & Seeds. Cambridge, Inglaterra: National Institute of Agriculture, 1988.
Style de citation MLA (8e éd.)Não informado. Plant Varieties & Seeds. National Institute of Agriculture, 1988.
Attention : ces citations peuvent ne pas être correctes à 100%.