Cita APA (7a ed.)
Lindgren, H. C. (1962). Educational psychology: In the classroom.
Cita estilo Chicago (17a ed.)
Lindgren, Henry Clay. Educational Psychology: In the Classroom. 1962.
Cita MLA (9a ed.)
Lindgren, Henry Clay. Educational Psychology: In the Classroom. 1962.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.