Payne, H. E. (1972). Plant jewels of the high country: "sempervivums and sedums,". Pine Cone Publishers.
Style de citation Chicago (17e éd.)Payne, Helen E. Plant Jewels of the High Country: "Sempervivums and Sedums,". Medford, Or.: Pine Cone Publishers, 1972.
Style de citation MLA (8e éd.)Payne, Helen E. Plant Jewels of the High Country: "Sempervivums and Sedums,". Pine Cone Publishers, 1972.
Attention : ces citations peuvent ne pas être correctes à 100%.