Over-population [electronic resource] : a lecture delivered for the Sunday Lecture Society, London, Oct. 27th, 1889, under the title: "The law of population : its meaning and menace" / by John M. Robertson
Nineteenth Century Collections Online: British Politics and Society.
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Publisher's advertisement: [1] p., 2nd count. Reproduction of the original from the Cornell University Libraries. AVAILABLE ONLINE TO AUTHORIZED PSU USERS.