APA ציטוט

Clarke, A., McKee, M., Appleby, J., & Sheldon, T. (1993). Efficient purchasing.

Citação norma Chicago

Clarke, A., M. McKee, J. Appleby, and T. Sheldon. Efficient Purchasing. 1993.

ציטוט MLA

Clarke, A., M. McKee, J. Appleby, and T. Sheldon. Efficient Purchasing. 1993.