Cita APA (7a ed.)
Sanginga, N., Mulongoy, K., & Swift, M. (1992). Contribution of soil organisms to the sustainability and productivity cropping systems in the tropics. Elsevier.
Cita Chicago Style (17a ed.)
Sanginga, N., K. Mulongoy, y M. Swift. Contribution of Soil Organisms to the Sustainability and Productivity Cropping Systems in the Tropics. Elsevier, 1992.
Cita MLA (9a ed.)
Sanginga, N., et al. Contribution of Soil Organisms to the Sustainability and Productivity Cropping Systems in the Tropics. Elsevier, 1992.
Precaución: Estas citas no son 100% exactas.