Rudolf Schmid

The study of plant structure: Principles and selected methods

Rudolf Schmid, T. P. O'Brien, M. E. McCully, 1981 .

Science and Civilisation in China, Vol. 6, Biology and Biological Technology@@@The Genius of China: 3,000 Years of Science, Discovery, and Invention

Rudolf Schmid, J. Needham, Lu G.-d., 1989 .

The American Horticultural Society Encyclopedia of Garden Plants

Elvin McDonald, Rudolf Schmid, Christopher Brickell, 1997 .