APA (7a ed.)

Beckie, H. J., Warwick, S. I., Sauder, C. a., Hall, L. M., Neil Harker, K., & Lozinski, C. (2011). Pollen-mediated gene flow in commercial fields of spring wheat in western Canadá / Hugh J. Beckie ; Suzanne I. Warwick ; Connie A. Sauder ... [et al.]. Crop Science, 51(1).