(1913). Inherited tendencies of secondary instruction in the United States / by Herbert Galen Lull.
Cita Chicago (17th ed.)Inherited Tendencies of Secondary Instruction in the United States / by Herbert Galen Lull. 1913.
Cita MLA (9th ed.)Inherited Tendencies of Secondary Instruction in the United States / by Herbert Galen Lull. 1913.
Atenció: Aquestes cites poden no estar 100% correctes.