1. General chemical peat technology;Rakovskii,1949
2. Basic properties of peat and methods for their determination;Lishtvan,1975
3. Basic properties of peat and methods for their determination;Lishtvan,1975
4. Basic properties of peat and methods for their determination;Lishtvan,1975
5. Basic properties of peat and methods for their determination;Lishtvan,1975