Gaya APA
Physical Science. (1977).
Scotland:
Blackie and Son Limited.
Gaya Chicago
Physical Science.
.
Scotland:
Blackie and Son Limited,
1977.
Buku.
Gaya MLA
Physical Science.
.
Scotland:
Blackie and Son Limited,
1977.
Buku.
Gaya Turabian
Physical Science.
Scotland:
Blackie and Son Limited,
1977.
Buku.