Cita APA (7a ed.)
Witter, E., Mårtensson, A., & Garcia, F. (1993). Size of the soil microbial biomass in a long-term field experiment as affected by different n-fertilizers and organic manures. Elsevier.
Cita Chicago Style (17a ed.)
Witter, E., A.M Mårtensson, y F.V Garcia. Size of the Soil Microbial Biomass in a Long-term Field Experiment as Affected by Different N-fertilizers and Organic Manures. Elsevier, 1993.
Cita MLA (9a ed.)
Witter, E., et al. Size of the Soil Microbial Biomass in a Long-term Field Experiment as Affected by Different N-fertilizers and Organic Manures. Elsevier, 1993.
Precaución: Estas citas no son 100% exactas.