APA (7th ed.) Citation

Blum, H. F. (1962). Time's arrow and evolution (2nd ed., rev.). Harper.

Chicago Style (17th ed.) Citation

Blum, Harold Francis. Time's Arrow and Evolution. 2nd ed., rev. New York: Harper, 1962.

MLA (8th ed.) Citation

Blum, Harold Francis. Time's Arrow and Evolution. 2nd ed., rev. Harper, 1962.