TY  - BOOK
AU  - Hansen,Wallace R.
TI  - Suggestions to authors of the Reports of the U.S. Geological Survey. 5.ed
SN  - no
PY  - 1958///
CY  - Washington - EEUU
PB  - U.S.Government Printing Office
KW  - Instrucciones para autores
KW  - Reports
KW  - United States Geological Survey
KW  - Geologia
ER  -