Cita APA (7th ed.)

THE WORLD BOOK .. (1980). The world book illustrated home medical encyclopedia. World Book-Chilcraft International.

Cita Chicago (17th ed.)

THE WORLD BOOK .. The World Book Illustrated Home Medical Encyclopedia. Chicago: World Book-Chilcraft International, 1980.

Cita MLA (9th ed.)

THE WORLD BOOK .. The World Book Illustrated Home Medical Encyclopedia. World Book-Chilcraft International, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.