Articular Cartilage Lesions of the Knee - Bert R. Mandelbaum, Jon E. Browne, Freddie Fu, Lyle Micheli, J. Bruce Mosely, Christoph Erggelet, Tom Minas, Lars Peterson, 1998
Almond blossom, Amygdalus communis. Chromolithograph of a botanical illustration by Hannah Zeller from her own Wild Flowers of the Holy Land," James Nisbet, London, 1876. Hannah Zeller (1838-1922) was a Swiss missionary