Cita APA

Stern, A. C. (1949). Best's Safety Directory (of Safety, First Aid, Hygiene and Fire Protective Products).

Chicago Style Citation

Stern, Arthur C. Best's Safety Directory (of Safety, First Aid, Hygiene and Fire Protective Products). 1949.

Cita MLA

Stern, Arthur C. Best's Safety Directory (of Safety, First Aid, Hygiene and Fire Protective Products). 1949.

Atenció: Aquestes cites poden no estar 100% correctes.