Gaya APA

Lewis, G. (1981). Properties of engineering materials : Theory, worked examples and problems (Cet. 1). Sebastopol, CA: The Macmillan Press.

Gaya MLA

Lewis, Gladius. "Properties of engineering materials : Theory, worked examples and problems". Cet. 1 Sebastopol, CA: The Macmillan Press, 1981. Text.