Cita APA (7th ed.)

Smith, R. M. (1969). Teacher dignosis of educational difficulties. Charles E.Merrill.

Cita Chicago (17th ed.)

Smith, Robert M. Teacher Dignosis of Educational Difficulties. Columbus: Charles E.Merrill, 1969.

Cita MLA (9th ed.)

Smith, Robert M. Teacher Dignosis of Educational Difficulties. Charles E.Merrill, 1969.