3 |The economic value of world's ecosystem services to human beings, according to Constanza and his colleagues (1997), is:
כללי קיימות אנגלית
3 |The economic value of world's ecosystem services to human beings, according to Constanza and his colleagues (1997), is:
1
| done | ||
מיין לפי
* השאלה נוספה בתאריך: 01-02-2025