APA
Helopoulos C., . (2004). The medical professional's guide to handheld computing. Boston: Jones and Bartlett.
Chicago
Helopoulos Chris, . 2004. The medical professional's guide to handheld computing. Boston: Jones and Bartlett.
Harvard
Helopoulos C., . (2004). The medical professional's guide to handheld computing. Boston: Jones and Bartlett.
MLA
Helopoulos Chris, . The medical professional's guide to handheld computing. Boston: Jones and Bartlett. 2004.