Cita APA (7a ed.)
OLK, CASSMAN, MAHIEU, & RANDALL. (1998). Conserved chemical properties of young humic acid fractions in tropical lowland soil under intensive irrigated rice cropping. Wiley.
Cita Chicago Style (17a ed.)
OLK, CASSMAN, MAHIEU, y RANDALL. Conserved Chemical Properties of Young Humic Acid Fractions in Tropical Lowland Soil Under Intensive Irrigated Rice Cropping. Wiley, 1998.
Cita MLA (9a ed.)
OLK, et al. Conserved Chemical Properties of Young Humic Acid Fractions in Tropical Lowland Soil Under Intensive Irrigated Rice Cropping. Wiley, 1998.
Precaución: Estas citas no son 100% exactas.