Stack, H. J. 1. . . e. (1949). Education for safe living. Prentice-Hall.
Cita Chicago (17th ed.)Stack, Herbert James 1892- ed. Education for Safe Living. New York: Prentice-Hall, 1949.
Cita MLA (9th ed.)Stack, Herbert James 1892- ed. Education for Safe Living. Prentice-Hall, 1949.
Atenció: Aquestes cites poden no estar 100% correctes.