APA (7e ed.) Bronvermelding

Various. Scientific American Supplement, No. 303, October 22, 1881.

Chicago (17e ed.) Bronvermelding

Various. Scientific American Supplement, No. 303, October 22, 1881.

MLA (9e ed.) Bronvermelding

Various. Scientific American Supplement, No. 303, October 22, 1881.

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