Gaya APA

Surgeons, A, C, O. (2004). Advanced Trauma Life Support For Doctors (ATLS) (7th ed). USA: American College of Surgeons Committe on Trauma.

Gaya MLA

Surgeons, American, College, Of. "Advanced Trauma Life Support For Doctors (ATLS)". 7th ed USA: American College of Surgeons Committe on Trauma, 2004. Text.