Gaya APA
Elementary Concepts of Mathematics. (1970).
London:
The macmillan company.
Gaya Chicago
Elementary Concepts of Mathematics.
Ed.3, Cet.1.
London:
The macmillan company,
1970.
.
Gaya MLA
Elementary Concepts of Mathematics.
Ed.3, Cet.1.
London:
The macmillan company,
1970.
.
Gaya Turabian
Elementary Concepts of Mathematics.
London:
The macmillan company,
1970.
.