APA (7e ed.) Bronvermelding

Não informado. (2018). Report of the U.S. National Committee for the International Biological Program. National Academy of Sciences.

Chicago (17e ed.) Bronvermelding

Não informado. Report of the U.S. National Committee for the International Biological Program. Washington: National Academy of Sciences, 2018.

MLA (8e ed.) Bronvermelding

Não informado. Report of the U.S. National Committee for the International Biological Program. National Academy of Sciences, 2018.

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