TY  - BOOK
AU  - Velázquez de Castro González,Federico
TI  - El medio ambiente
T2  - [Qué sabes de...]
AV  - TD169 ebook 
PY  - 2019///]
CY  - Madrid
PB  - Editorial Popular
KW  - Environmental protection
KW  - Pollution
KW  - Pollutants
N1  - Includes bibliographical references
UR  - https://www.digitaliapublishing.com/a/155638/
ER  -