APA Citatie

National Geographic Society. (2002). McGraw-Hill science. New York: McGraw-Hill.

Chicago Style citaat

National Geographic Society. McGraw-Hill Science. New York: McGraw-Hill, 2002.

MLA citatie

National Geographic Society. McGraw-Hill Science. New York: McGraw-Hill, 2002.

Let op: Deze citaties zijn niet altijd 100% accuraat.