Cita APA (7th ed.)

ABBOTT, C. (2012). 21 SPEECHES THAT SHAPED OUR WORLD: THE PEOPLE AND IDEAS THAT CHANGED THE WAY WE THINK. RIDER.

Cita Chicago (17th ed.)

ABBOTT, CHRIS. 21 SPEECHES THAT SHAPED OUR WORLD: THE PEOPLE AND IDEAS THAT CHANGED THE WAY WE THINK. LONDON: RIDER, 2012.

Cita MLA (9th ed.)

ABBOTT, CHRIS. 21 SPEECHES THAT SHAPED OUR WORLD: THE PEOPLE AND IDEAS THAT CHANGED THE WAY WE THINK. RIDER, 2012.