APA (7th ed.) Citation

Butler, H. C., Norris, F. A., & Stoever, E. R. (1930). Geography and itinerary. Syria.

Chicago Style (17th ed.) Citation

Butler, Howard Crosby, Frederick A. Norris, and Edward R. Stoever. "Geography and Itinerary." Syria 1930.

MLA (8th ed.) Citation

Butler, Howard Crosby, et al. "Geography and Itinerary." Syria, 1930.

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