CROCKETT, J. U. Bulbs: The time-life encyclopedia of gardening. Time-Life Books Alexandria.
Style de citation Chicago (17e éd.)CROCKETT, James Underwood. Bulbs: The Time-life Encyclopedia of Gardening. Time-Life Books Alexandria.
Style de citation MLA (8e éd.)CROCKETT, James Underwood. Bulbs: The Time-life Encyclopedia of Gardening. Time-Life Books Alexandria.
Attention : ces citations peuvent ne pas être correctes à 100%.