Citazione Stile APA (7a Edizione)
Gray, H. A. (1930). Some Factors in the undergraduate careers of young college students.
Citazione stile Chigago Style (17a edizione)
Gray, Howard A. Some Factors in the Undergraduate Careers of Young College Students. New York, 1930.
Citatione MLA (9a ed.)
Gray, Howard A. Some Factors in the Undergraduate Careers of Young College Students. 1930.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.