PET

MLA

Cherry, Simon R, Magnus Dahlbom, and Michael E Phelps. Pet. Springer New York, 2006.

APA

Cherry, S. R, Dahlbom, M., & Phelps, M. E. (2006). PET. Springer New York.

Chicago

Cherry, Simon R., Magnus Dahlbom, and Michael E Phelps. PET. : Springer New York, 2006.