| Notas: | "Originally published as four Memoirs (164, 177, 205, and 210) of Cornell University Agricultural Experiment Station in 1934, 1935, 1937, and 1937 respectively. This edition ... is an unabridged facsimile reprint of the original works." Each pt. has its original t.p. |
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| Descripción Física: | 71, 62, 84, 80 páginas : 24 cm ilustred ; |
| Público: | Audiencia general |
| Bibliografía: | Includes bibliographies. |
| ISBN: | 0911836012 |