Gaya APA
Megninnets, W, J., Sten, B. (1981).
mechanical and electrical equipment for buildings (6th ed.).
New York:
Milestone.
Gaya MLA
Megninnets, William, J.., Sten, Benjamin.
"mechanical and electrical equipment for buildings".
6th ed.
New York:
Milestone,
1981.
Text.