The Lancet · 1949 · 13 citations · 2 references
Social SciencesEconomicsLabor EconomicsLabor Market AnalysisLaborLabor Force Analysis
2
The Principles and Practice of Obstetrics
Journal of the American Medical Association · 1943 · 601 citations
The Principles and Practice of Obstetrics
Journal of the American Medical Association · 1938 · 49 citations