Sadler, W. S. (1948). Adolescence problems: A handbook for physicians, parents, and teachers. Mosby.
Lua i Stíl Chicago (17ú heag.)Sadler, William Samuel. Adolescence Problems: A Handbook for Physicians, Parents, and Teachers. St. Louis: Mosby, 1948.
Lua MLA (9ú heag.)Sadler, William Samuel. Adolescence Problems: A Handbook for Physicians, Parents, and Teachers. Mosby, 1948.
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