APA (7th ed.) Citation

Betts, R. B. (1978). Christians in the Arab East (Revised edition.). John Knox Press.

Chicago Style (17th ed.) Citation

Betts, Robert Brenton. Christians in the Arab East. Revised edition. USA: John Knox Press, 1978.

MLA (9th ed.) Citation

Betts, Robert Brenton. Christians in the Arab East. Revised edition. John Knox Press, 1978.

Warning: These citations may not always be 100% accurate.