Cita APA (7th ed.)

Curtis Jenkins, G., & Newton, R. C. F. (1981). The first year of life. Churchill Livingstone.

Cita Chicago (17th ed.)

Curtis Jenkins, Graham, i Richard C. F. Newton. The First Year of Life. Edinburgh ; New York: Churchill Livingstone, 1981.

Cita MLA (8th ed.)

Curtis Jenkins, Graham, i Richard C. F. Newton. The First Year of Life. Churchill Livingstone, 1981.