APA (7th ed.) Citation

World Health Organization. (1971). Mass health examinations. [publisher not identified].

Chicago Style (17th ed.) Citation

World Health Organization. Mass Health Examinations. Geneva: [publisher not identified], 1971.

MLA (9th ed.) Citation

World Health Organization. Mass Health Examinations. [publisher not identified], 1971.

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