APA (7th ed.) Citation

Brown, P. S. (1930). The second industrial revolution and its significance. The American Academy of Political and Social Science.

Chicago Style (17th ed.) Citation

Brown, Percy S. The Second Industrial Revolution and Its Significance. Philadelphia: The American Academy of Political and Social Science, 1930.

MLA (9th ed.) Citation

Brown, Percy S. The Second Industrial Revolution and Its Significance. The American Academy of Political and Social Science, 1930.