APA (7e ed.) Bronvermelding

Various. Encyclopaedia Britannica, 11th Edition, "Cat" to "Celt" Volume 5, Slice 5.

Chicago (17e ed.) Bronvermelding

Various. Encyclopaedia Britannica, 11th Edition, "Cat" to "Celt" Volume 5, Slice 5.

MLA (9e ed.) Bronvermelding

Various. Encyclopaedia Britannica, 11th Edition, "Cat" to "Celt" Volume 5, Slice 5.

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