APA (7th ed.) Citation

Leppard, H. M., & University of Chicago. Press. (1938). Air lines connecting Asia with Europe, 1937. University of Chicago Press.

Chicago Style (17th ed.) Citation

Leppard, Henry M., and University of Chicago. Press. Air Lines Connecting Asia with Europe, 1937. Chicago, Ill.: University of Chicago Press, 1938.

MLA (8th ed.) Citation

Leppard, Henry M., and University of Chicago. Press. Air Lines Connecting Asia with Europe, 1937. University of Chicago Press, 1938.