El Salvador /
Woolley, P. O.
El Salvador / P. O. Woolley, C. A. Perry, D. L. Larson. - Washington, D.C. : U.S. Dept. of Health, Education and Welfare, Office of International Health, Division of Planning and Evaluation, 1972. - 53 p. - Syncrisis : the dynamics of health ; 5 DHEW publication ; no. (OS) 72-35 .
Public health.
Socioeconomic factors.
El Salvador.
WA 900 DS2
El Salvador / P. O. Woolley, C. A. Perry, D. L. Larson. - Washington, D.C. : U.S. Dept. of Health, Education and Welfare, Office of International Health, Division of Planning and Evaluation, 1972. - 53 p. - Syncrisis : the dynamics of health ; 5 DHEW publication ; no. (OS) 72-35 .
Public health.
Socioeconomic factors.
El Salvador.
WA 900 DS2