Cita APA (7a ed.)
Walker, H. M. (1931). Studies in the history of statistical method: With special reference to certain educational problems. Wiliams and Wilkins Co.
Cita Chicago Style (17a ed.)
Walker, Helen M. Studies in the History of Statistical Method: With Special Reference to Certain Educational Problems. Baltimore: Wiliams and Wilkins Co, 1931.
Cita MLA (9a ed.)
Walker, Helen M. Studies in the History of Statistical Method: With Special Reference to Certain Educational Problems. Wiliams and Wilkins Co, 1931.
Precaución: Estas citas no son 100% exactas.