APA Edition Citation

(1973). Childrens Britanica, Vol.20: Index and Atlas of the world. Encyclopaedia Britanica International Ltd.

Chicago Edition Citation

Childrens Britanica, Vol.20: Index and Atlas of the World. London: Encyclopaedia Britanica International Ltd, 1973.

MLA Edition Citation

Childrens Britanica, Vol.20: Index and Atlas of the World. Encyclopaedia Britanica International Ltd, 1973.

Warning: These citations may not always be 100% accurate.