Παραπομπή σε μορφή APA (7η εκδ.)

Olsson, S. (1995). On barley monoculture soil: Plant growth affecting microbiota in soil from three long-term field experiments on crop rotation. Swedish University of Agricultural Sciences, Dept. of Plant Pathology.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Olsson, Stig. On Barley Monoculture Soil: Plant Growth Affecting Microbiota in Soil from Three Long-term Field Experiments on Crop Rotation. Uppsala, Sweden: Swedish University of Agricultural Sciences, Dept. of Plant Pathology, 1995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Olsson, Stig. On Barley Monoculture Soil: Plant Growth Affecting Microbiota in Soil from Three Long-term Field Experiments on Crop Rotation. Swedish University of Agricultural Sciences, Dept. of Plant Pathology, 1995.