APA (7th ed.) Citation

Lovejoy, A. O. (1961). The reason, the understanding, and time. John Hopkins Press.

Chicago Style (17th ed.) Citation

Lovejoy, Arthur Oncken. The Reason, the Understanding, and Time. Baltimore: John Hopkins Press, 1961.

MLA (9th ed.) Citation

Lovejoy, Arthur Oncken. The Reason, the Understanding, and Time. John Hopkins Press, 1961.