Gaya APA

Technology, T, I, O, E, A. (2006). On site guide BS 7671:2001 (20040) (16th ed). London: The Institution of Engineering and Technology.

Gaya MLA

Technology, The, Institution, Of, Engineering, And. "On site guide BS 7671:2001 (20040)". 16th ed London: The Institution of Engineering and Technology, 2006. Printed Book.