APA (7th ed.) Citation

Leff, S., & Leff, V. (1959). The School Health service. Lewis.

Chicago Style (17th ed.) Citation

Leff, Samuel, and Vera Leff. The School Health Service. London: Lewis, 1959.

MLA (9th ed.) Citation

Leff, Samuel, and Vera Leff. The School Health Service. Lewis, 1959.

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