Gaya APA

RICHTER, H, P. (2011). Practical Electrical Wiring: Residential, Farm, Commercial, & Industrial 21st ed (21). New Richmond: Park Publishing.

Gaya MLA

RICHTER, Herbert, P. "Practical Electrical Wiring: Residential, Farm, Commercial, & Industrial 21st ed". 21 New Richmond: Park Publishing, 2011. Printed.