Okkerman, J. A.
Description of exposures J. A. Okkerman - [199?] - 7 p. ill.,maps 30 cm
The information that can be gained from the description of exposures depends on many factors; knowledge of structures, textures and sediment types, time, weather conditions, purpose of description and also on the way the description itself is done
Geology investigation
Description of exposures J. A. Okkerman - [199?] - 7 p. ill.,maps 30 cm
The information that can be gained from the description of exposures depends on many factors; knowledge of structures, textures and sediment types, time, weather conditions, purpose of description and also on the way the description itself is done
Geology investigation