Cita APA (7th ed.)
Weinland, J. D. (1963). How to think straight. Littlefield, Adams & Co.
Cita Chicago (17th ed.)
Weinland, James D. How to Think Straight. Totowa, NJ: Littlefield, Adams & Co, 1963.
Cita MLA (9th ed.)
Weinland, James D. How to Think Straight. Littlefield, Adams & Co, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.