APA
Barber C. J., Krauss R. M., . (2000). An introduction to theological research. Lanham, Md: University Press of America.
Chicago
Barber Cyril J, Krauss Robert M, . 2000. An introduction to theological research. Lanham, Md: University Press of America.
Harvard
Barber C. J., Krauss R. M., . (2000). An introduction to theological research. Lanham, Md: University Press of America.
MLA
Barber Cyril J, Krauss Robert M, . An introduction to theological research. Lanham, Md: University Press of America. 2000.