APA (7e ed.) Bronvermelding

Não informado. (2018). Progress Report. Netherlands Committee for the International Biological Programme.

Chicago (17e ed.) Bronvermelding

Não informado. Progress Report. Amsterdam: Netherlands Committee for the International Biological Programme, 2018.

MLA (8e ed.) Bronvermelding

Não informado. Progress Report. Netherlands Committee for the International Biological Programme, 2018.

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