Cita APA (7th ed.)
Burns, M., & Weston, M. (1976). The book of think: Or how to solve a problem twice your size. Little, Brown and Company.
Cita Chicago (17th ed.)
Burns, Marilyn, i Martha Weston. The Book of Think: Or How to Solve a Problem Twice Your Size. Boston: Little, Brown and Company, 1976.
Cita MLA (9th ed.)
Burns, Marilyn, i Martha Weston. The Book of Think: Or How to Solve a Problem Twice Your Size. Little, Brown and Company, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.