Gaya APA
Williams, T, I., Schaaf, W, E. (1999).
A history invention : from stone axes to silicon chips .
London:
Little, Brown \\n Company.
Gaya MLA
Williams, Trevor, I.., Schaaf, William, E..
"A history invention : from stone axes to silicon chips".
London:
Little, Brown \\n Company,
1999.
Text.