APA
Ehrman B. D., . (2003). Lost christianities. Oxford: Oxford University Press.
Chicago
Ehrman Bart D, . 2003. Lost christianities. Oxford: Oxford University Press.
Harvard
Ehrman B. D., . (2003). Lost christianities. Oxford: Oxford University Press.
MLA
Ehrman Bart D, . Lost christianities. Oxford: Oxford University Press. 2003.