APA (7th ed.) Citation

Ohtonen, R. (1990). Biological activity and microorganisms in forest soil as indicators of environmental changes. University of Oulu.

Chicago Style (17th ed.) Citation

Ohtonen, Rauni. Biological Activity and Microorganisms in Forest Soil as Indicators of Environmental Changes. Oulu: University of Oulu, 1990.

MLA (9th ed.) Citation

Ohtonen, Rauni. Biological Activity and Microorganisms in Forest Soil as Indicators of Environmental Changes. University of Oulu, 1990.

Warning: These citations may not always be 100% accurate.