The principles and practice of agricultural research /
Salmon, S. C.
The principles and practice of agricultural research / S. C. Salmon assisted by A. A. Hanson. - London : Leonard Hill, 1964. - xi, 384 p.
Agriculture--Research.
The principles and practice of agricultural research / S. C. Salmon assisted by A. A. Hanson. - London : Leonard Hill, 1964. - xi, 384 p.
Agriculture--Research.