Note 22 — Chapter I
Reading edition
W. J. Perry, "The Geographical Distribution of Terraced Cultivation and Irrigation," Memoirs and Proc. Manch. Lit. and Phil. Soc., Vol. 60, 1916.
Reading edition
W. J. Perry, "The Geographical Distribution of Terraced Cultivation and Irrigation," Memoirs and Proc. Manch. Lit. and Phil. Soc., Vol. 60, 1916.