Silvius, G. H., & Curry, E. H. (1956). Teaching multiple activities in industrial education. McKnight & McKnight.
Cita Chicago (17th ed.)Silvius, G. Harold, i Estell H. Curry. Teaching Multiple Activities in Industrial Education. Bloomington, Ill.: McKnight & McKnight, 1956.
Cita MLA (8th ed.)Silvius, G. Harold, i Estell H. Curry. Teaching Multiple Activities in Industrial Education. McKnight & McKnight, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.