## Abstract Young children often participate in reading picture books at home, public libraries, and preschools. Picture books provide children with meaning and an experience united in words and illustrations. Based on unobtrusive and participant observations in public libraries and preschools, thi
โฆ LIBER โฆ
An exploratory study of community noise levels in Mexico City
โ Scribed by R.R. Boullosa; S.J. Perez Ruiz
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 485 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0003-682X
No coin nor oath required. For personal study only.
โฆ Synopsis
A community noi~w survey undertaken in a small area of Mexico City is described. The data was collected at 23 sites for three general time periods during a day. The sampling was done in a quasi-random way within the three time periods and at different dates during February-March 1985. Several statistical analyses were done on all data. The results are presented in terms of the average of several statistical descriptors, and La, for doCferent classes of site.
- In/ormation on levels gf environmental noise levels requisite to protect puhlic health and welfare with an adequate margin of safety, Report No.
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