Instituto Brasileiro de Informação em Ciência e Tecnologia

توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Não informado. (1919). Mechanical Engineering. American Society of Mechanical Engineers.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Não informado. Mechanical Engineering. New York: American Society of Mechanical Engineers, 1919.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Não informado. Mechanical Engineering. American Society of Mechanical Engineers, 1919.