Gaya APA
Plumbers and Pipe Fitters Library. (1967).
Indiana:
Howard W Sams & Co.
Gaya Chicago
Plumbers and Pipe Fitters Library.
Ed.1, Cet.4.
Indiana:
Howard W Sams & Co,
1967.
.
Gaya MLA
Plumbers and Pipe Fitters Library.
Ed.1, Cet.4.
Indiana:
Howard W Sams & Co,
1967.
.
Gaya Turabian
Plumbers and Pipe Fitters Library.
Indiana:
Howard W Sams & Co,
1967.
.