Sarjala, T., & Kaunisto, S. (1996, December). Effect of different potassium sources on the seasonal variation of potassium and free polyamines in Scots pine needles. Silva Fennica.
Chicago Style (17th ed.) CitationSarjala, Tytti, and Seppo Kaunisto. "Effect of Different Potassium Sources on the Seasonal Variation of Potassium and Free Polyamines in Scots Pine Needles." Silva Fennica Dec. 1996.
MLA (9th ed.) CitationSarjala, Tytti, and Seppo Kaunisto. "Effect of Different Potassium Sources on the Seasonal Variation of Potassium and Free Polyamines in Scots Pine Needles." Silva Fennica, Dec. 1996.
Warning: These citations may not always be 100% accurate.