(2) BBA (1990). Effects on the Activity of the Soil Microflora. BBA Guidelines for the Official Testing of Plant Protection Products, VI, 1 – 1 (2. vyd., 1990).
(2) BBA (1990). Effects on the Activity of the Soil Microflora. BBA Guidelines for the Official Testing of Plant Protection Products, VI, 1 – 1 (2. vyd., 1990).