Boerma, J. T., & et al. (1990). Immunization: Levels, trends, and differentials. Institute for Resource Development/Macro Systems, Inc.
Citace podle Chicago (17th ed.)Boerma, J. Tiles, a et al. Immunization: Levels, Trends, and Differentials. Columbia, Md: Institute for Resource Development/Macro Systems, Inc, 1990.
Citace podle MLA (9th ed.)Boerma, J. Tiles, a et al. Immunization: Levels, Trends, and Differentials. Institute for Resource Development/Macro Systems, Inc, 1990.
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