Theodore Savory J. F. H. G. K. a. E. W. Y., . (1959). Instinctive Living. : Pergamon.
Theodore Savory J F Harris G Kerkut and E W Yemm, . 1959. Instinctive Living. : Pergamon.
Theodore Savory J F Harris G Kerkut and E W Yemm, . Instinctive Living. : Pergamon. 1959.
