Baldwin, J., Freeman, R., Lowe, C., Schofield, C., & Lee, E. (1989). A GAMMA-LACTAM ANALOG OF THE PENEMS POSSESSING ANTIBACTERIAL ACTIVITY.
芝加哥风格引文Baldwin, J., R. Freeman, C. Lowe, C. Schofield, 与 E. Lee. A GAMMA-LACTAM ANALOG OF THE PENEMS POSSESSING ANTIBACTERIAL ACTIVITY. 1989.
MLA引文Baldwin, J., et al. A GAMMA-LACTAM ANALOG OF THE PENEMS POSSESSING ANTIBACTERIAL ACTIVITY. 1989.
警告：这些引文格式不一定是100％准确.