Cita APA (7a ed.)
Engelhardt, N. (1949). Planning secondary school buildings. Reinhold.
Cita estilo Chicago (17a ed.)
Engelhardt, N.L. Planning Secondary School Buildings. Nueva York, EUA: Reinhold, 1949.
Cita MLA (9a ed.)
Engelhardt, N.L. Planning Secondary School Buildings. Reinhold, 1949.
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