APA

Youens-Clark, K., Buckler, E., Casstevens, T., Chen, C., DeClerck, G., Derwent, P., Dharmawardhana, P., Jaiswal, P., Kersey, P., Karthikeyan, A., Lu, J., McCouch, S., Ren, L., Spooner, W., Stein, J., Thomason, J., Wei, S., & Ware, D. (2010). Gramene database in 2010: updates and extensions. : Oxford University Press.