APA Edition Citation

(1977). The new encyclopaedia Britannica: Propaedia outline of knowledge (Ed.15.).

Chicago Edition Citation

The New Encyclopaedia Britannica: Propaedia Outline of Knowledge. Ed.15. Chicago, Encyclopaedia Britannica Inc, 1977.

MLA Edition Citation

The New Encyclopaedia Britannica: Propaedia Outline of Knowledge. Ed.15. 1977.

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