Snedden, D. (1921). Sociological determination of objectives in education. Lippincott.
Citazione stile Chigago Style (17a edizione)Snedden, David. Sociological Determination of Objectives in Education. Pennsylvania: Lippincott, 1921.
Citatione MLA (8a ed.)Snedden, David. Sociological Determination of Objectives in Education. Lippincott, 1921.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.