peoplepill id: joseph-j-spengler
JJS
United States of America
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Joseph J. Spengler
American economist

Joseph J. Spengler

The works

Books

Sources:
Openlibrary
Population theory and policy
1956

Population theory and policy

Authors:
Population problems in the Victorian age
1973

Population problems in the Victorian age

Authors:
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Joseph J. Spengler
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