Williams, B., & Kramer, J. Orchids for everyone: A practical guide to the cultivation of over 200 of the world´s most beautiful varieties.
Citazione stile Chigago Style (17a edizione)Williams, Brian, e Jack Kramer. Orchids for Everyone: A Practical Guide to the Cultivation of over 200 of the World´s Most Beautiful Varieties.
Citatione MLA (8a ed.)Williams, Brian, e Jack Kramer. Orchids for Everyone: A Practical Guide to the Cultivation of over 200 of the World´s Most Beautiful Varieties.
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