Cita APA (7a ed.)
Cobbina, J., Atta-Krah, A., Meregini, A., & Duguma, B. (1990). Productivity of some browse plants on acid soils of southeastern Nigeria.
Cita Chicago Style (17a ed.)
Cobbina, J., A.N Atta-Krah, A.D Meregini, y B. Duguma. Productivity of Some Browse Plants on Acid Soils of Southeastern Nigeria. 1990.
Cita MLA (9a ed.)
Cobbina, J., et al. Productivity of Some Browse Plants on Acid Soils of Southeastern Nigeria. 1990.
Precaución: Estas citas no son 100% exactas.