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Economical Geography - in the spacial distribution of industries 
and waftage. 
It is also recommended that aerial photographies should be used, 
in the first place, in subjects working with the contents of Hu 
man Geography, because one must take into consideration that the 
students have a previous knowledge of the elements familiar to 
them in their everyday life. Immediately afterwards they may be 
introduced in the contents of the physical area about this already 
known universe. 
For the study involving the use of aerial photographies, the pupil 
should necessarily follow a subject, compulsary in his curriculum 
(syllabus), offering him the basic knowledge of photogrammetry 
and photointerpretation. 
6. Bibliographical References. 
  
- AMERICAN SOCIETY OF PHOTOGRAMMETRY. Manual of Photographis  In- 
terpretation.Virginia, 1960. 
  
- ‘PUAN, "YY, PU. Topofilia. Sao Paulo, DIFEL, 1980. 
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