APA Style

PARRINGTON, V, L. (1930). Main Current in American Thought: an interpretation of American literature from the beginnings to 1920 (2). New York: Harcourt Brace and Company.

MLA Style

PARRINGTON, VERNON, LOUIS. "Main Current in American Thought: an interpretation of American literature from the beginnings to 1920". 2 New York: Harcourt Brace and Company, 1930. Text.