Cita APA (7th ed.)
Hoban, C. F. (1948). Focus on learning: Motion pictures in the school. American Council on Education.
Cita Chicago (17th ed.)
Hoban, Charles Francois. Focus on Learning: Motion Pictures in the School. Washington: American Council on Education, 1948.
Cita MLA (9th ed.)
Hoban, Charles Francois. Focus on Learning: Motion Pictures in the School. American Council on Education, 1948.
Atenció: Aquestes cites poden no estar 100% correctes.