Williams, B., & Kramer, J. Orchids for everyone: A practical guide to the cultivation of over 200 of the world´s most beautiful varieties.
Cita Chicago (17th ed.)Williams, Brian, i Jack Kramer. Orchids for Everyone: A Practical Guide to the Cultivation of over 200 of the World´s Most Beautiful Varieties.
Cita MLA (8th ed.)Williams, Brian, i Jack Kramer. Orchids for Everyone: A Practical Guide to the Cultivation of over 200 of the World´s Most Beautiful Varieties.
Atenció: Aquestes cites poden no estar 100% correctes.