Cita APA (7th ed.)
Hanson, L. F., & Hanson, L. F. (1963). Programs '63: A guide to programed instructional materials available to educators by september 1963.
Cita Chicago (17th ed.)
Hanson, Lincoln F., i Lincoln F. Hanson. Programs '63: A Guide to Programed Instructional Materials Available to Educators by September 1963. 1963.
Cita MLA (9th ed.)
Hanson, Lincoln F., i Lincoln F. Hanson. Programs '63: A Guide to Programed Instructional Materials Available to Educators by September 1963. 1963.
Atenció: Aquestes cites poden no estar 100% correctes.