APA (7th ed.) Citation

Gray, J. L. (1936). The nation's intelligence / by J.L. Gray. Watts.

Chicago Style (17th ed.) Citation

Gray, J. L. The Nation's Intelligence / by J.L. Gray. Watts, 1936.

MLA (9th ed.) Citation

Gray, J. L. The Nation's Intelligence / by J.L. Gray. Watts, 1936.

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