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3. Kingsbury VSr: The Philosophy of Nursing Education as Influenced by the Development of Professional Nursing Education in the United States from 1873 to 1947, master's thesis. St. Louis University, 1947, pp 19–20, 83, 85, 88.
4. Benson ER, McDevitt JQ: Community Health and Nursing Practice. Englewood Cliffs, New Jersey, Prentice-Hall, Inc, 1976, pp 9–10, 17–18.
5. Reinhardt AN, Quinn MD (eds): Family-Centered Community Nursing: A Sociocultural Framework. St. Louis, CV Mosby Co, 1973. p 11.