Gaya APA

Ingpen, R. et al (1995). Encyclopedia Of Ideas That Changed The World: The Greatest Discoveries And Inventions Of Human History (Cet.1). London: Dragon\'s World.

Gaya MLA

Ingpen, Robert. et al. "Encyclopedia Of Ideas That Changed The World: The Greatest Discoveries And Inventions Of Human History". Cet.1 London: Dragon\'s World, 1995. Text.