Hämäläinen, M. (1991). Principal variations in the chemical composition of peat. Swedish University of Agricultural Sciences, Dept. of Chemistry.
Chicago-Zitierstil (17. Ausg.)Hämäläinen, Markku. Principal Variations in the Chemical Composition of Peat. Uppsala, Sweden: Swedish University of Agricultural Sciences, Dept. of Chemistry, 1991.
MLA-Zitierstil (8. Ausg.)Hämäläinen, Markku. Principal Variations in the Chemical Composition of Peat. Swedish University of Agricultural Sciences, Dept. of Chemistry, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.