Gaya APA
Teaching primary science. (1979).
London:
Longman Group Ltd.
Gaya Chicago
Teaching primary science.
-.
London:
Longman Group Ltd,
1979.
Buku.
Gaya MLA
Teaching primary science.
-.
London:
Longman Group Ltd,
1979.
Buku.
Gaya Turabian
Teaching primary science.
London:
Longman Group Ltd,
1979.
Buku.