Não informado. (2018). Report of the U.S. National Committee for the International Biological Program. National Academy of Sciences.
Chicago-Zitierstil (17. Ausg.)Não informado. Report of the U.S. National Committee for the International Biological Program. Washington: National Academy of Sciences, 2018.
MLA-Zitierstil (8. Ausg.)Não informado. Report of the U.S. National Committee for the International Biological Program. National Academy of Sciences, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.