dokuchaevs genetic system of soil classification

6:52

10:00

22:01

2:41:47

23:08

22:16

21:37

3:37

3:00

2:14:56

10:41

37:17

37:18

2:02

27:49

4:03:41

3:25:33

7:08

3:03

کوتاه

4:25

39:13

15:06

کوتاه

2:03

کوتاه

3:56

12:56

کوتاه

4:58

3:08

27:51

14:11

15:27

19:38

11:57

20:22

12:32

10:49

21:42