Cita APA (7a ed.)
Flesch, R. How to write, speak, and think more effectively / Ruidolf Flesch.
Cita estilo Chicago (17a ed.)
Flesch, Rudolf. How to Write, Speak, and Think More Effectively / Ruidolf Flesch.
Cita MLA (9a ed.)
Flesch, Rudolf. How to Write, Speak, and Think More Effectively / Ruidolf Flesch.
Precaución: Estas citas no son 100% exactas.