APA (7e ed.) Bronvermelding

Não informado. Rensselaer Observatory Publications. Rensselaer Polytechnic Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Rensselaer Observatory Publications. Troy, NY: Rensselaer Polytechnic Institute.

MLA (8e ed.) Bronvermelding

Não informado. Rensselaer Observatory Publications. Rensselaer Polytechnic Institute.

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