Dawson, L. H. 1., Philip, G. D. E., Muir, R., & McElroy, R. M. (1935). The March of man: A chronological record of peoples and events from prehistoric times to the present day: comprising a comparative time chart of universal history in seven sections, an historical atlas of 96 pages and 64 plates of illustration. [London]: The Encyclopædia britannica Co., Ltd.

Dawson, Lawrence H. 1880-, George D. E. Philip, Ramsay Muir, and Robert McNutt McElroy. The March of Man: A Chronological Record of Peoples and Events From Prehistoric Times to the Present Day: Comprising a Comparative Time Chart of Universal History in Seven Sections, an Historical Atlas of 96 Pages and 64 Plates of Illustration. [London]: The Encyclopædia britannica Co., Ltd, 1935.

Dawson, Lawrence H. 1880-, George D. E. Philip, Ramsay Muir, and Robert McNutt McElroy. The March of Man: A Chronological Record of Peoples and Events From Prehistoric Times to the Present Day: Comprising a Comparative Time Chart of Universal History in Seven Sections, an Historical Atlas of 96 Pages and 64 Plates of Illustration. [London]: The Encyclopædia britannica Co., Ltd, 1935.