Gaya APA
Elementary mathematics. (1970).
London:
Prindle.
Gaya Chicago
Elementary mathematics.
.
London:
Prindle,
1970.
Buku.
Gaya MLA
Elementary mathematics.
.
London:
Prindle,
1970.
Buku.
Gaya Turabian
Elementary mathematics.
London:
Prindle,
1970.
Buku.