APA (7th ed.) Citation

(1977). Medical and health annual. Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

Medical and Health Annual. Chicago [etc.]: Encyclopaedia Britannica, 1977.

MLA (9th ed.) Citation

Medical and Health Annual. Encyclopaedia Britannica, 1977.

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