Gaya APA
International Progress in Urethanes Vol. 2. (1980).
America:
Technomic Publishing Co.
Gaya Chicago
International Progress in Urethanes Vol. 2.
~.
America:
Technomic Publishing Co,
1980.
Buku.
Gaya MLA
International Progress in Urethanes Vol. 2.
~.
America:
Technomic Publishing Co,
1980.
Buku.
Gaya Turabian
International Progress in Urethanes Vol. 2.
America:
Technomic Publishing Co,
1980.
Buku.