Gaya APA
E., R, H, E, P. (1966).
handbook of mechanical specifications for buildings and plants a checklist for engineers and architects (1).
New York:
McGraw Hill Book Company.
Gaya MLA
E., ROBERT, HENDERSON, EMERICK,, P..
"handbook of mechanical specifications for buildings and plants a checklist for engineers and architects".
1
New York:
McGraw Hill Book Company,
1966.
Text Book Sipil.