Herbertson, A. J. 1865-1915. Man and his work : an introduction to human geography / by A.J. Herbertson and F.D. Herbertson. - 7th ed - London : A. & C. Black, 1940. - 152 p. : ill. ; 21 cm. Subjects--Topical Terms: Human geography Dewey Class. No.: 304.2 / HEM 1940