APA (7a ed.)

Yan, H., Shang, A., Peng, Y., Yu, P., & Li, C. (2011). Covering middle leaves and ears reveals differential regulatory roles of vegetative and reproductive organs in root growth and nitrogen uptake in maize / Huifeng Yan ; Aixin Shang ; Yunfeng Peng ... [et al.]. Crop Science, 51(1).